Finding the Third Proportional to 72,558 and 112,117.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,558 : 112,117.50 = 112,117.50 : x
2. Step 2: Convert to fraction form
   72,558/112,117.50 = 112,117.50/x
3. Step 3: Cross multiply
   72,558x = 112,117.50 × 112,117.50
4. Step 4: Simplify right side
   72,558x = 12,570,333,806.25
5. Step 5: Solve for x
   x = 12,570,333,806.25/72,558
6. Step 6: Final answer
   x = 173,245.32