Finding the Third Proportional to 25,899.75 and 55,420.88

Step by Step Solution

1. Step 1: Write the proportion equation
   25,899.75 : 55,420.88 = 55,420.88 : x
2. Step 2: Convert to fraction form
   25,899.75/55,420.88 = 55,420.88/x
3. Step 3: Cross multiply
   25,899.75x = 55,420.88 × 55,420.88
4. Step 4: Simplify right side
   25,899.75x = 3,071,473,385.77
5. Step 5: Solve for x
   x = 3,071,473,385.77/25,899.75
6. Step 6: Final answer
   x = 118,590.85