Finding the Third Proportional to 40,788 and 55,038

Step by Step Solution

1. Step 1: Write the proportion equation
   40,788 : 55,038 = 55,038 : x
2. Step 2: Convert to fraction form
   40,788/55,038 = 55,038/x
3. Step 3: Cross multiply
   40,788x = 55,038 × 55,038
4. Step 4: Simplify right side
   40,788x = 3,029,181,444
5. Step 5: Solve for x
   x = 3,029,181,444/40,788
6. Step 6: Final answer
   x = 74,266.49