Finding the Third Proportional to 63,374.06 and 128,498.06

Step by Step Solution

1. Step 1: Write the proportion equation
   63,374.06 : 128,498.06 = 128,498.06 : x
2. Step 2: Convert to fraction form
   63,374.06/128,498.06 = 128,498.06/x
3. Step 3: Cross multiply
   63,374.06x = 128,498.06 × 128,498.06
4. Step 4: Simplify right side
   63,374.06x = 16,511,752,066.25
5. Step 5: Solve for x
   x = 16,511,752,066.25/63,374.06
6. Step 6: Final answer
   x = 260,544.32