Finding the Third Proportional to 190,432.50 and 279,756

Step by Step Solution

1. Step 1: Write the proportion equation
   190,432.50 : 279,756 = 279,756 : x
2. Step 2: Convert to fraction form
   190,432.50/279,756 = 279,756/x
3. Step 3: Cross multiply
   190,432.50x = 279,756 × 279,756
4. Step 4: Simplify right side
   190,432.50x = 78,263,419,536
5. Step 5: Solve for x
   x = 78,263,419,536/190,432.50
6. Step 6: Final answer
   x = 410,977.22