Finding the Third Proportional to 77,398.88 and 118,315.69

Step by Step Solution

1. Step 1: Write the proportion equation
   77,398.88 : 118,315.69 = 118,315.69 : x
2. Step 2: Convert to fraction form
   77,398.88/118,315.69 = 118,315.69/x
3. Step 3: Cross multiply
   77,398.88x = 118,315.69 × 118,315.69
4. Step 4: Simplify right side
   77,398.88x = 13,998,601,908.60
5. Step 5: Solve for x
   x = 13,998,601,908.60/77,398.88
6. Step 6: Final answer
   x = 180,863.12