Finding the Third Proportional to 402,271.50 and 554,132

Step by Step Solution

1. Step 1: Write the proportion equation
   402,271.50 : 554,132 = 554,132 : x
2. Step 2: Convert to fraction form
   402,271.50/554,132 = 554,132/x
3. Step 3: Cross multiply
   402,271.50x = 554,132 × 554,132
4. Step 4: Simplify right side
   402,271.50x = 307,062,273,424
5. Step 5: Solve for x
   x = 307,062,273,424/402,271.50
6. Step 6: Final answer
   x = 763,320.97