Finding the Third Proportional to 69,138.38 and 150,790.88

Step by Step Solution

1. Step 1: Write the proportion equation
   69,138.38 : 150,790.88 = 150,790.88 : x
2. Step 2: Convert to fraction form
   69,138.38/150,790.88 = 150,790.88/x
3. Step 3: Cross multiply
   69,138.38x = 150,790.88 × 150,790.88
4. Step 4: Simplify right side
   69,138.38x = 22,737,887,983.27
5. Step 5: Solve for x
   x = 22,737,887,983.27/69,138.38
6. Step 6: Final answer
   x = 328,875.07