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Finding the Third Proportional to 206,420.63 and 308,670.75

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Solution

The third proportional to 206,420.63 and 308,670.75 is: 461,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,420.63 : 308,670.75 = 308,670.75 : x
  2. Step 2: Convert to fraction form
    206,420.63/308,670.75 = 308,670.75/x
  3. Step 3: Cross multiply
    206,420.63x = 308,670.75 × 308,670.75
  4. Step 4: Simplify right side
    206,420.63x = 95,277,631,905.56
  5. Step 5: Solve for x
    x = 95,277,631,905.56/206,420.63
  6. Step 6: Final answer
    x = 461,570.31

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