Finding the Third Proportional to 78,772.50 and 125,281.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,772.50 : 125,281.69 = 125,281.69 : x
2. Step 2: Convert to fraction form
   78,772.50/125,281.69 = 125,281.69/x
3. Step 3: Cross multiply
   78,772.50x = 125,281.69 × 125,281.69
4. Step 4: Simplify right side
   78,772.50x = 15,695,501,222.85
5. Step 5: Solve for x
   x = 15,695,501,222.85/78,772.50
6. Step 6: Final answer
   x = 199,251.02