Finding the Third Proportional to 74,688 and 113,592

Step by Step Solution

1. Step 1: Write the proportion equation
   74,688 : 113,592 = 113,592 : x
2. Step 2: Convert to fraction form
   74,688/113,592 = 113,592/x
3. Step 3: Cross multiply
   74,688x = 113,592 × 113,592
4. Step 4: Simplify right side
   74,688x = 12,903,142,464
5. Step 5: Solve for x
   x = 12,903,142,464/74,688
6. Step 6: Final answer
   x = 172,760.58