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Finding the Third Proportional to 413,236.13 and 638,554.50

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Solution

The third proportional to 413,236.13 and 638,554.50 is: 986,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,236.13 : 638,554.50 = 638,554.50 : x
  2. Step 2: Convert to fraction form
    413,236.13/638,554.50 = 638,554.50/x
  3. Step 3: Cross multiply
    413,236.13x = 638,554.50 × 638,554.50
  4. Step 4: Simplify right side
    413,236.13x = 407,751,849,470.25
  5. Step 5: Solve for x
    x = 407,751,849,470.25/413,236.13
  6. Step 6: Final answer
    x = 986,728.47

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