Finding the Third Proportional to 73,891 and 111,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,891 : 111,612.50 = 111,612.50 : x
2. Step 2: Convert to fraction form
   73,891/111,612.50 = 111,612.50/x
3. Step 3: Cross multiply
   73,891x = 111,612.50 × 111,612.50
4. Step 4: Simplify right side
   73,891x = 12,457,350,156.25
5. Step 5: Solve for x
   x = 12,457,350,156.25/73,891
6. Step 6: Final answer
   x = 168,590.90