Finding the Third Proportional to 149,850 and 318,773.25

Step by Step Solution

1. Step 1: Write the proportion equation
   149,850 : 318,773.25 = 318,773.25 : x
2. Step 2: Convert to fraction form
   149,850/318,773.25 = 318,773.25/x
3. Step 3: Cross multiply
   149,850x = 318,773.25 × 318,773.25
4. Step 4: Simplify right side
   149,850x = 101,616,384,915.56
5. Step 5: Solve for x
   x = 101,616,384,915.56/149,850
6. Step 6: Final answer
   x = 678,120.69