Finding the Third Proportional to 328,263.75 and 714,042.56

Step by Step Solution

1. Step 1: Write the proportion equation
   328,263.75 : 714,042.56 = 714,042.56 : x
2. Step 2: Convert to fraction form
   328,263.75/714,042.56 = 714,042.56/x
3. Step 3: Cross multiply
   328,263.75x = 714,042.56 × 714,042.56
4. Step 4: Simplify right side
   328,263.75x = 509,856,781,061.57
5. Step 5: Solve for x
   x = 509,856,781,061.57/328,263.75
6. Step 6: Final answer
   x = 1,553,192.46