Finding the Third Proportional to 67,079.25 and 90,777.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,079.25 : 90,777.25 = 90,777.25 : x
2. Step 2: Convert to fraction form
   67,079.25/90,777.25 = 90,777.25/x
3. Step 3: Cross multiply
   67,079.25x = 90,777.25 × 90,777.25
4. Step 4: Simplify right side
   67,079.25x = 8,240,509,117.56
5. Step 5: Solve for x
   x = 8,240,509,117.56/67,079.25
6. Step 6: Final answer
   x = 122,847.37