Finding the Third Proportional to 709,018.31 and 1,071,967.50

Step by Step Solution

1. Step 1: Write the proportion equation
   709,018.31 : 1,071,967.50 = 1,071,967.50 : x
2. Step 2: Convert to fraction form
   709,018.31/1,071,967.50 = 1,071,967.50/x
3. Step 3: Cross multiply
   709,018.31x = 1,071,967.50 × 1,071,967.50
4. Step 4: Simplify right side
   709,018.31x = 1,149,114,321,056.25
5. Step 5: Solve for x
   x = 1,149,114,321,056.25/709,018.31
6. Step 6: Final answer
   x = 1,620,711.77