Finding the Third Proportional to 172,422 and 267,598.69

Step by Step Solution

1. Step 1: Write the proportion equation
   172,422 : 267,598.69 = 267,598.69 : x
2. Step 2: Convert to fraction form
   172,422/267,598.69 = 267,598.69/x
3. Step 3: Cross multiply
   172,422x = 267,598.69 × 267,598.69
4. Step 4: Simplify right side
   172,422x = 71,609,057,551.72
5. Step 5: Solve for x
   x = 71,609,057,551.72/172,422
6. Step 6: Final answer
   x = 415,312.76