Finding the Third Proportional to 42,807.56 and 68,175.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,807.56 : 68,175.38 = 68,175.38 : x
2. Step 2: Convert to fraction form
   42,807.56/68,175.38 = 68,175.38/x
3. Step 3: Cross multiply
   42,807.56x = 68,175.38 × 68,175.38
4. Step 4: Simplify right side
   42,807.56x = 4,647,881,756.39
5. Step 5: Solve for x
   x = 4,647,881,756.39/42,807.56
6. Step 6: Final answer
   x = 108,576.18