Finding the Third Proportional to 56,983.50 and 90,396

Step by Step Solution

1. Step 1: Write the proportion equation
   56,983.50 : 90,396 = 90,396 : x
2. Step 2: Convert to fraction form
   56,983.50/90,396 = 90,396/x
3. Step 3: Cross multiply
   56,983.50x = 90,396 × 90,396
4. Step 4: Simplify right side
   56,983.50x = 8,171,436,816
5. Step 5: Solve for x
   x = 8,171,436,816/56,983.50
6. Step 6: Final answer
   x = 143,400.05