Finding the Third Proportional to 35,488.13 and 54,940.78

Step by Step Solution

1. Step 1: Write the proportion equation
   35,488.13 : 54,940.78 = 54,940.78 : x
2. Step 2: Convert to fraction form
   35,488.13/54,940.78 = 54,940.78/x
3. Step 3: Cross multiply
   35,488.13x = 54,940.78 × 54,940.78
4. Step 4: Simplify right side
   35,488.13x = 3,018,489,444.36
5. Step 5: Solve for x
   x = 3,018,489,444.36/35,488.13
6. Step 6: Final answer
   x = 85,056.32