Finding the Third Proportional to 68,339.25 and 147,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,339.25 : 147,910.50 = 147,910.50 : x
2. Step 2: Convert to fraction form
   68,339.25/147,910.50 = 147,910.50/x
3. Step 3: Cross multiply
   68,339.25x = 147,910.50 × 147,910.50
4. Step 4: Simplify right side
   68,339.25x = 21,877,516,010.25
5. Step 5: Solve for x
   x = 21,877,516,010.25/68,339.25
6. Step 6: Final answer
   x = 320,131.05