Finding the Third Proportional to 79,677 and 131,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,677 : 131,719.50 = 131,719.50 : x
2. Step 2: Convert to fraction form
   79,677/131,719.50 = 131,719.50/x
3. Step 3: Cross multiply
   79,677x = 131,719.50 × 131,719.50
4. Step 4: Simplify right side
   79,677x = 17,350,026,680.25
5. Step 5: Solve for x
   x = 17,350,026,680.25/79,677
6. Step 6: Final answer
   x = 217,754.52