Finding the Third Proportional to 76,145.06 and 111,619.69

Step by Step Solution

1. Step 1: Write the proportion equation
   76,145.06 : 111,619.69 = 111,619.69 : x
2. Step 2: Convert to fraction form
   76,145.06/111,619.69 = 111,619.69/x
3. Step 3: Cross multiply
   76,145.06x = 111,619.69 × 111,619.69
4. Step 4: Simplify right side
   76,145.06x = 12,458,954,637.60
5. Step 5: Solve for x
   x = 12,458,954,637.60/76,145.06
6. Step 6: Final answer
   x = 163,621.31