Finding the Third Proportional to 71,280 and 112,863.38

Step by Step Solution

1. Step 1: Write the proportion equation
   71,280 : 112,863.38 = 112,863.38 : x
2. Step 2: Convert to fraction form
   71,280/112,863.38 = 112,863.38/x
3. Step 3: Cross multiply
   71,280x = 112,863.38 × 112,863.38
4. Step 4: Simplify right side
   71,280x = 12,738,141,416.39
5. Step 5: Solve for x
   x = 12,738,141,416.39/71,280
6. Step 6: Final answer
   x = 178,705.69