Finding the Third Proportional to 81,374.25 and 123,208.88

Step by Step Solution

1. Step 1: Write the proportion equation
   81,374.25 : 123,208.88 = 123,208.88 : x
2. Step 2: Convert to fraction form
   81,374.25/123,208.88 = 123,208.88/x
3. Step 3: Cross multiply
   81,374.25x = 123,208.88 × 123,208.88
4. Step 4: Simplify right side
   81,374.25x = 15,180,426,878.77
5. Step 5: Solve for x
   x = 15,180,426,878.77/81,374.25
6. Step 6: Final answer
   x = 186,550.74