Finding the Third Proportional to 355,792.50 and 554,100.75

Step by Step Solution

1. Step 1: Write the proportion equation
   355,792.50 : 554,100.75 = 554,100.75 : x
2. Step 2: Convert to fraction form
   355,792.50/554,100.75 = 554,100.75/x
3. Step 3: Cross multiply
   355,792.50x = 554,100.75 × 554,100.75
4. Step 4: Simplify right side
   355,792.50x = 307,027,641,150.56
5. Step 5: Solve for x
   x = 307,027,641,150.56/355,792.50
6. Step 6: Final answer
   x = 862,940.17