Finding the Third Proportional to 50,490.50 and 78,176.75

Step by Step Solution

1. Step 1: Write the proportion equation
   50,490.50 : 78,176.75 = 78,176.75 : x
2. Step 2: Convert to fraction form
   50,490.50/78,176.75 = 78,176.75/x
3. Step 3: Cross multiply
   50,490.50x = 78,176.75 × 78,176.75
4. Step 4: Simplify right side
   50,490.50x = 6,111,604,240.56
5. Step 5: Solve for x
   x = 6,111,604,240.56/50,490.50
6. Step 6: Final answer
   x = 121,044.64