Finding the Third Proportional to 67,891.50 and 148,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,891.50 : 148,909.50 = 148,909.50 : x
2. Step 2: Convert to fraction form
   67,891.50/148,909.50 = 148,909.50/x
3. Step 3: Cross multiply
   67,891.50x = 148,909.50 × 148,909.50
4. Step 4: Simplify right side
   67,891.50x = 22,174,039,190.25
5. Step 5: Solve for x
   x = 22,174,039,190.25/67,891.50
6. Step 6: Final answer
   x = 326,609.95