Finding the Third Proportional to 133,200 and 292,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,200 : 292,648.50 = 292,648.50 : x
2. Step 2: Convert to fraction form
   133,200/292,648.50 = 292,648.50/x
3. Step 3: Cross multiply
   133,200x = 292,648.50 × 292,648.50
4. Step 4: Simplify right side
   133,200x = 85,643,144,552.25
5. Step 5: Solve for x
   x = 85,643,144,552.25/133,200
6. Step 6: Final answer
   x = 642,966.55