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Finding the Third Proportional to 515,980.13 and 781,768.13

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Solution

The third proportional to 515,980.13 and 781,768.13 is: 1,184,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,980.13 : 781,768.13 = 781,768.13 : x
  2. Step 2: Convert to fraction form
    515,980.13/781,768.13 = 781,768.13/x
  3. Step 3: Cross multiply
    515,980.13x = 781,768.13 × 781,768.13
  4. Step 4: Simplify right side
    515,980.13x = 611,161,401,266.02
  5. Step 5: Solve for x
    x = 611,161,401,266.02/515,980.13
  6. Step 6: Final answer
    x = 1,184,466.94

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