Finding the Third Proportional to 78,674.34 and 118,664.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,674.34 : 118,664.72 = 118,664.72 : x
2. Step 2: Convert to fraction form
   78,674.34/118,664.72 = 118,664.72/x
3. Step 3: Cross multiply
   78,674.34x = 118,664.72 × 118,664.72
4. Step 4: Simplify right side
   78,674.34x = 14,081,315,476.02
5. Step 5: Solve for x
   x = 14,081,315,476.02/78,674.34
6. Step 6: Final answer
   x = 178,982.31