Finding the Third Proportional to 465,624 and 721,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   465,624 : 721,210.50 = 721,210.50 : x
2. Step 2: Convert to fraction form
   465,624/721,210.50 = 721,210.50/x
3. Step 3: Cross multiply
   465,624x = 721,210.50 × 721,210.50
4. Step 4: Simplify right side
   465,624x = 520,144,585,310.25
5. Step 5: Solve for x
   x = 520,144,585,310.25/465,624
6. Step 6: Final answer
   x = 1,117,091.44