Finding the Third Proportional to 66,192.50 and 101,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,192.50 : 101,019.50 = 101,019.50 : x
2. Step 2: Convert to fraction form
   66,192.50/101,019.50 = 101,019.50/x
3. Step 3: Cross multiply
   66,192.50x = 101,019.50 × 101,019.50
4. Step 4: Simplify right side
   66,192.50x = 10,204,939,380.25
5. Step 5: Solve for x
   x = 10,204,939,380.25/66,192.50
6. Step 6: Final answer
   x = 154,170.63