Finding the Third Proportional to 72,998.72 and 110,868.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,998.72 : 110,868.75 = 110,868.75 : x
2. Step 2: Convert to fraction form
   72,998.72/110,868.75 = 110,868.75/x
3. Step 3: Cross multiply
   72,998.72x = 110,868.75 × 110,868.75
4. Step 4: Simplify right side
   72,998.72x = 12,291,879,726.56
5. Step 5: Solve for x
   x = 12,291,879,726.56/72,998.72
6. Step 6: Final answer
   x = 168,384.87