Finding the Third Proportional to 78,788.81 and 118,262.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,788.81 : 118,262.25 = 118,262.25 : x
2. Step 2: Convert to fraction form
   78,788.81/118,262.25 = 118,262.25/x
3. Step 3: Cross multiply
   78,788.81x = 118,262.25 × 118,262.25
4. Step 4: Simplify right side
   78,788.81x = 13,985,959,775.06
5. Step 5: Solve for x
   x = 13,985,959,775.06/78,788.81
6. Step 6: Final answer
   x = 177,512.00