Finding the Third Proportional to 42,809.06 and 68,177.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,809.06 : 68,177.25 = 68,177.25 : x
2. Step 2: Convert to fraction form
   42,809.06/68,177.25 = 68,177.25/x
3. Step 3: Cross multiply
   42,809.06x = 68,177.25 × 68,177.25
4. Step 4: Simplify right side
   42,809.06x = 4,648,137,417.56
5. Step 5: Solve for x
   x = 4,648,137,417.56/42,809.06
6. Step 6: Final answer
   x = 108,578.35