Finding the Third Proportional to 61,026.75 and 81,454.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,026.75 : 81,454.50 = 81,454.50 : x
2. Step 2: Convert to fraction form
   61,026.75/81,454.50 = 81,454.50/x
3. Step 3: Cross multiply
   61,026.75x = 81,454.50 × 81,454.50
4. Step 4: Simplify right side
   61,026.75x = 6,634,835,570.25
5. Step 5: Solve for x
   x = 6,634,835,570.25/61,026.75
6. Step 6: Final answer
   x = 108,720.12