Finding the Third Proportional to 50,681 and 78,482

Step by Step Solution

1. Step 1: Write the proportion equation
   50,681 : 78,482 = 78,482 : x
2. Step 2: Convert to fraction form
   50,681/78,482 = 78,482/x
3. Step 3: Cross multiply
   50,681x = 78,482 × 78,482
4. Step 4: Simplify right side
   50,681x = 6,159,424,324
5. Step 5: Solve for x
   x = 6,159,424,324/50,681
6. Step 6: Final answer
   x = 121,533.20