Finding the Third Proportional to 50,715.38 and 78,836.25

Step by Step Solution

1. Step 1: Write the proportion equation
   50,715.38 : 78,836.25 = 78,836.25 : x
2. Step 2: Convert to fraction form
   50,715.38/78,836.25 = 78,836.25/x
3. Step 3: Cross multiply
   50,715.38x = 78,836.25 × 78,836.25
4. Step 4: Simplify right side
   50,715.38x = 6,215,154,314.06
5. Step 5: Solve for x
   x = 6,215,154,314.06/50,715.38
6. Step 6: Final answer
   x = 122,549.71