Finding the Third Proportional to 149,844.94 and 318,760.31

Step by Step Solution

1. Step 1: Write the proportion equation
   149,844.94 : 318,760.31 = 318,760.31 : x
2. Step 2: Convert to fraction form
   149,844.94/318,760.31 = 318,760.31/x
3. Step 3: Cross multiply
   149,844.94x = 318,760.31 × 318,760.31
4. Step 4: Simplify right side
   149,844.94x = 101,608,136,825.10
5. Step 5: Solve for x
   x = 101,608,136,825.10/149,844.94
6. Step 6: Final answer
   x = 678,088.55