Finding the Third Proportional to 68,979 and 147,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,979 : 147,124.50 = 147,124.50 : x
2. Step 2: Convert to fraction form
   68,979/147,124.50 = 147,124.50/x
3. Step 3: Cross multiply
   68,979x = 147,124.50 × 147,124.50
4. Step 4: Simplify right side
   68,979x = 21,645,618,500.25
5. Step 5: Solve for x
   x = 21,645,618,500.25/68,979
6. Step 6: Final answer
   x = 313,800.12