Finding the Third Proportional to 126,778.50 and 190,674

Step by Step Solution

1. Step 1: Write the proportion equation
   126,778.50 : 190,674 = 190,674 : x
2. Step 2: Convert to fraction form
   126,778.50/190,674 = 190,674/x
3. Step 3: Cross multiply
   126,778.50x = 190,674 × 190,674
4. Step 4: Simplify right side
   126,778.50x = 36,356,574,276
5. Step 5: Solve for x
   x = 36,356,574,276/126,778.50
6. Step 6: Final answer
   x = 286,772.40