Finding the Third Proportional to 52,039.13 and 78,424.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,039.13 : 78,424.31 = 78,424.31 : x
2. Step 2: Convert to fraction form
   52,039.13/78,424.31 = 78,424.31/x
3. Step 3: Cross multiply
   52,039.13x = 78,424.31 × 78,424.31
4. Step 4: Simplify right side
   52,039.13x = 6,150,372,791.10
5. Step 5: Solve for x
   x = 6,150,372,791.10/52,039.13
6. Step 6: Final answer
   x = 118,187.48