Finding the Third Proportional to 73,890.75 and 111,612.25

Step by Step Solution

1. Step 1: Write the proportion equation
   73,890.75 : 111,612.25 = 111,612.25 : x
2. Step 2: Convert to fraction form
   73,890.75/111,612.25 = 111,612.25/x
3. Step 3: Cross multiply
   73,890.75x = 111,612.25 × 111,612.25
4. Step 4: Simplify right side
   73,890.75x = 12,457,294,350.06
5. Step 5: Solve for x
   x = 12,457,294,350.06/73,890.75
6. Step 6: Final answer
   x = 168,590.71