Finding the Third Proportional to 481,221 and 724,585.50

Step by Step Solution

1. Step 1: Write the proportion equation
   481,221 : 724,585.50 = 724,585.50 : x
2. Step 2: Convert to fraction form
   481,221/724,585.50 = 724,585.50/x
3. Step 3: Cross multiply
   481,221x = 724,585.50 × 724,585.50
4. Step 4: Simplify right side
   481,221x = 525,024,146,810.25
5. Step 5: Solve for x
   x = 525,024,146,810.25/481,221
6. Step 6: Final answer
   x = 1,091,025.01