Finding the Third Proportional to 78,784 and 116,939

Step by Step Solution

1. Step 1: Write the proportion equation
   78,784 : 116,939 = 116,939 : x
2. Step 2: Convert to fraction form
   78,784/116,939 = 116,939/x
3. Step 3: Cross multiply
   78,784x = 116,939 × 116,939
4. Step 4: Simplify right side
   78,784x = 13,674,729,721
5. Step 5: Solve for x
   x = 13,674,729,721/78,784
6. Step 6: Final answer
   x = 173,572.42