Finding the Third Proportional to 60,644 and 91,020

Step by Step Solution

1. Step 1: Write the proportion equation
   60,644 : 91,020 = 91,020 : x
2. Step 2: Convert to fraction form
   60,644/91,020 = 91,020/x
3. Step 3: Cross multiply
   60,644x = 91,020 × 91,020
4. Step 4: Simplify right side
   60,644x = 8,284,640,400
5. Step 5: Solve for x
   x = 8,284,640,400/60,644
6. Step 6: Final answer
   x = 136,611.05