Finding the Third Proportional to 74,857.50 and 112,590

Step by Step Solution

1. Step 1: Write the proportion equation
   74,857.50 : 112,590 = 112,590 : x
2. Step 2: Convert to fraction form
   74,857.50/112,590 = 112,590/x
3. Step 3: Cross multiply
   74,857.50x = 112,590 × 112,590
4. Step 4: Simplify right side
   74,857.50x = 12,676,508,100
5. Step 5: Solve for x
   x = 12,676,508,100/74,857.50
6. Step 6: Final answer
   x = 169,341.86