Finding the Third Proportional to 55,900.50 and 89,764.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,900.50 : 89,764.50 = 89,764.50 : x
2. Step 2: Convert to fraction form
   55,900.50/89,764.50 = 89,764.50/x
3. Step 3: Cross multiply
   55,900.50x = 89,764.50 × 89,764.50
4. Step 4: Simplify right side
   55,900.50x = 8,057,665,460.25
5. Step 5: Solve for x
   x = 8,057,665,460.25/55,900.50
6. Step 6: Final answer
   x = 144,142.99