Finding the Third Proportional to 481,477.50 and 745,128

Step by Step Solution

1. Step 1: Write the proportion equation
   481,477.50 : 745,128 = 745,128 : x
2. Step 2: Convert to fraction form
   481,477.50/745,128 = 745,128/x
3. Step 3: Cross multiply
   481,477.50x = 745,128 × 745,128
4. Step 4: Simplify right side
   481,477.50x = 555,215,736,384
5. Step 5: Solve for x
   x = 555,215,736,384/481,477.50
6. Step 6: Final answer
   x = 1,153,149.91