Finding the Third Proportional to 480,657 and 724,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   480,657 : 724,666.50 = 724,666.50 : x
2. Step 2: Convert to fraction form
   480,657/724,666.50 = 724,666.50/x
3. Step 3: Cross multiply
   480,657x = 724,666.50 × 724,666.50
4. Step 4: Simplify right side
   480,657x = 525,141,536,222.25
5. Step 5: Solve for x
   x = 525,141,536,222.25/480,657
6. Step 6: Final answer
   x = 1,092,549.44