Finding the Third Proportional to 60,831 and 91,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,831 : 91,003.50 = 91,003.50 : x
2. Step 2: Convert to fraction form
   60,831/91,003.50 = 91,003.50/x
3. Step 3: Cross multiply
   60,831x = 91,003.50 × 91,003.50
4. Step 4: Simplify right side
   60,831x = 8,281,637,012.25
5. Step 5: Solve for x
   x = 8,281,637,012.25/60,831
6. Step 6: Final answer
   x = 136,141.72