Finding the Third Proportional to 147,379.50 and 315,793.69

Step by Step Solution

1. Step 1: Write the proportion equation
   147,379.50 : 315,793.69 = 315,793.69 : x
2. Step 2: Convert to fraction form
   147,379.50/315,793.69 = 315,793.69/x
3. Step 3: Cross multiply
   147,379.50x = 315,793.69 × 315,793.69
4. Step 4: Simplify right side
   147,379.50x = 99,725,653,064.85
5. Step 5: Solve for x
   x = 99,725,653,064.85/147,379.50
6. Step 6: Final answer
   x = 676,658.92