Finding the Third Proportional to 68,647.50 and 101,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,647.50 : 101,128.50 = 101,128.50 : x
2. Step 2: Convert to fraction form
   68,647.50/101,128.50 = 101,128.50/x
3. Step 3: Cross multiply
   68,647.50x = 101,128.50 × 101,128.50
4. Step 4: Simplify right side
   68,647.50x = 10,226,973,512.25
5. Step 5: Solve for x
   x = 10,226,973,512.25/68,647.50
6. Step 6: Final answer
   x = 148,978.09