Finding the Third Proportional to 472,572 and 718,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   472,572 : 718,717.50 = 718,717.50 : x
2. Step 2: Convert to fraction form
   472,572/718,717.50 = 718,717.50/x
3. Step 3: Cross multiply
   472,572x = 718,717.50 × 718,717.50
4. Step 4: Simplify right side
   472,572x = 516,554,844,806.25
5. Step 5: Solve for x
   x = 516,554,844,806.25/472,572
6. Step 6: Final answer
   x = 1,093,071.20