Finding the Third Proportional to 87,619.50 and 190,620

Step by Step Solution

1. Step 1: Write the proportion equation
   87,619.50 : 190,620 = 190,620 : x
2. Step 2: Convert to fraction form
   87,619.50/190,620 = 190,620/x
3. Step 3: Cross multiply
   87,619.50x = 190,620 × 190,620
4. Step 4: Simplify right side
   87,619.50x = 36,335,984,400
5. Step 5: Solve for x
   x = 36,335,984,400/87,619.50
6. Step 6: Final answer
   x = 414,702.03