Finding the Third Proportional to 39,451 and 55,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,451 : 55,490.50 = 55,490.50 : x
2. Step 2: Convert to fraction form
   39,451/55,490.50 = 55,490.50/x
3. Step 3: Cross multiply
   39,451x = 55,490.50 × 55,490.50
4. Step 4: Simplify right side
   39,451x = 3,079,195,590.25
5. Step 5: Solve for x
   x = 3,079,195,590.25/39,451
6. Step 6: Final answer
   x = 78,051.14