Finding the Third Proportional to 50,472 and 78,984

Step by Step Solution

1. Step 1: Write the proportion equation
   50,472 : 78,984 = 78,984 : x
2. Step 2: Convert to fraction form
   50,472/78,984 = 78,984/x
3. Step 3: Cross multiply
   50,472x = 78,984 × 78,984
4. Step 4: Simplify right side
   50,472x = 6,238,472,256
5. Step 5: Solve for x
   x = 6,238,472,256/50,472
6. Step 6: Final answer
   x = 123,602.64