Finding the Third Proportional to 133,718.50 and 291,419

Step by Step Solution

1. Step 1: Write the proportion equation
   133,718.50 : 291,419 = 291,419 : x
2. Step 2: Convert to fraction form
   133,718.50/291,419 = 291,419/x
3. Step 3: Cross multiply
   133,718.50x = 291,419 × 291,419
4. Step 4: Simplify right side
   133,718.50x = 84,925,033,561
5. Step 5: Solve for x
   x = 84,925,033,561/133,718.50
6. Step 6: Final answer
   x = 635,103.10