Finding the Third Proportional to 514,711.50 and 742,539

Step by Step Solution

1. Step 1: Write the proportion equation
   514,711.50 : 742,539 = 742,539 : x
2. Step 2: Convert to fraction form
   514,711.50/742,539 = 742,539/x
3. Step 3: Cross multiply
   514,711.50x = 742,539 × 742,539
4. Step 4: Simplify right side
   514,711.50x = 551,364,166,521
5. Step 5: Solve for x
   x = 551,364,166,521/514,711.50
6. Step 6: Final answer
   x = 1,071,210.12