Finding the Third Proportional to 60,760 and 91,979

Step by Step Solution

1. Step 1: Write the proportion equation
   60,760 : 91,979 = 91,979 : x
2. Step 2: Convert to fraction form
   60,760/91,979 = 91,979/x
3. Step 3: Cross multiply
   60,760x = 91,979 × 91,979
4. Step 4: Simplify right side
   60,760x = 8,460,136,441
5. Step 5: Solve for x
   x = 8,460,136,441/60,760
6. Step 6: Final answer
   x = 139,238.59