Finding the Third Proportional to 40,686.05 and 60,989.20

Step by Step Solution

1. Step 1: Write the proportion equation
   40,686.05 : 60,989.20 = 60,989.20 : x
2. Step 2: Convert to fraction form
   40,686.05/60,989.20 = 60,989.20/x
3. Step 3: Cross multiply
   40,686.05x = 60,989.20 × 60,989.20
4. Step 4: Simplify right side
   40,686.05x = 3,719,682,897.82
5. Step 5: Solve for x
   x = 3,719,682,897.82/40,686.05
6. Step 6: Final answer
   x = 91,424.04