Finding the Third Proportional to 50,713.31 and 78,834.38

Step by Step Solution

1. Step 1: Write the proportion equation
   50,713.31 : 78,834.38 = 78,834.38 : x
2. Step 2: Convert to fraction form
   50,713.31/78,834.38 = 78,834.38/x
3. Step 3: Cross multiply
   50,713.31x = 78,834.38 × 78,834.38
4. Step 4: Simplify right side
   50,713.31x = 6,214,858,681.64
5. Step 5: Solve for x
   x = 6,214,858,681.64/50,713.31
6. Step 6: Final answer
   x = 122,548.86