Finding the Third Proportional to 65,606.20 and 140,540.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,606.20 : 140,540.06 = 140,540.06 : x
2. Step 2: Convert to fraction form
   65,606.20/140,540.06 = 140,540.06/x
3. Step 3: Cross multiply
   65,606.20x = 140,540.06 × 140,540.06
4. Step 4: Simplify right side
   65,606.20x = 19,751,509,167.50
5. Step 5: Solve for x
   x = 19,751,509,167.50/65,606.20
6. Step 6: Final answer
   x = 301,061.61