Finding the Third Proportional to 71,919.75 and 112,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,919.75 : 112,820.50 = 112,820.50 : x
2. Step 2: Convert to fraction form
   71,919.75/112,820.50 = 112,820.50/x
3. Step 3: Cross multiply
   71,919.75x = 112,820.50 × 112,820.50
4. Step 4: Simplify right side
   71,919.75x = 12,728,465,220.25
5. Step 5: Solve for x
   x = 12,728,465,220.25/71,919.75
6. Step 6: Final answer
   x = 176,981.50