Finding the Third Proportional to 126,486 and 190,559.25

Step by Step Solution

1. Step 1: Write the proportion equation
   126,486 : 190,559.25 = 190,559.25 : x
2. Step 2: Convert to fraction form
   126,486/190,559.25 = 190,559.25/x
3. Step 3: Cross multiply
   126,486x = 190,559.25 × 190,559.25
4. Step 4: Simplify right side
   126,486x = 36,312,827,760.56
5. Step 5: Solve for x
   x = 36,312,827,760.56/126,486
6. Step 6: Final answer
   x = 287,089.70