Finding the Third Proportional to 78,820 and 118,249

Step by Step Solution

1. Step 1: Write the proportion equation
   78,820 : 118,249 = 118,249 : x
2. Step 2: Convert to fraction form
   78,820/118,249 = 118,249/x
3. Step 3: Cross multiply
   78,820x = 118,249 × 118,249
4. Step 4: Simplify right side
   78,820x = 13,982,826,001
5. Step 5: Solve for x
   x = 13,982,826,001/78,820
6. Step 6: Final answer
   x = 177,402.00