Finding the Third Proportional to 133,012.34 and 291,892.78

Step by Step Solution

1. Step 1: Write the proportion equation
   133,012.34 : 291,892.78 = 291,892.78 : x
2. Step 2: Convert to fraction form
   133,012.34/291,892.78 = 291,892.78/x
3. Step 3: Cross multiply
   133,012.34x = 291,892.78 × 291,892.78
4. Step 4: Simplify right side
   133,012.34x = 85,201,395,745.86
5. Step 5: Solve for x
   x = 85,201,395,745.86/133,012.34
6. Step 6: Final answer
   x = 640,552.59