Finding the Third Proportional to 80,486 and 109,310.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,486 : 109,310.50 = 109,310.50 : x
2. Step 2: Convert to fraction form
   80,486/109,310.50 = 109,310.50/x
3. Step 3: Cross multiply
   80,486x = 109,310.50 × 109,310.50
4. Step 4: Simplify right side
   80,486x = 11,948,785,410.25
5. Step 5: Solve for x
   x = 11,948,785,410.25/80,486
6. Step 6: Final answer
   x = 148,457.94