Finding the Third Proportional to 50,890.50 and 77,199.75

Step by Step Solution

1. Step 1: Write the proportion equation
   50,890.50 : 77,199.75 = 77,199.75 : x
2. Step 2: Convert to fraction form
   50,890.50/77,199.75 = 77,199.75/x
3. Step 3: Cross multiply
   50,890.50x = 77,199.75 × 77,199.75
4. Step 4: Simplify right side
   50,890.50x = 5,959,801,400.06
5. Step 5: Solve for x
   x = 5,959,801,400.06/50,890.50
6. Step 6: Final answer
   x = 117,110.29