Finding the Third Proportional to 72,068.25 and 111,972.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,068.25 : 111,972.75 = 111,972.75 : x
2. Step 2: Convert to fraction form
   72,068.25/111,972.75 = 111,972.75/x
3. Step 3: Cross multiply
   72,068.25x = 111,972.75 × 111,972.75
4. Step 4: Simplify right side
   72,068.25x = 12,537,896,742.56
5. Step 5: Solve for x
   x = 12,537,896,742.56/72,068.25
6. Step 6: Final answer
   x = 173,972.54