Finding the Third Proportional to 78,118.69 and 167,308.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,118.69 : 167,308.31 = 167,308.31 : x
2. Step 2: Convert to fraction form
   78,118.69/167,308.31 = 167,308.31/x
3. Step 3: Cross multiply
   78,118.69x = 167,308.31 × 167,308.31
4. Step 4: Simplify right side
   78,118.69x = 27,992,071,431.60
5. Step 5: Solve for x
   x = 27,992,071,431.60/78,118.69
6. Step 6: Final answer
   x = 358,327.47