Finding the Third Proportional to 87,410.50 and 191,669

Step by Step Solution

1. Step 1: Write the proportion equation
   87,410.50 : 191,669 = 191,669 : x
2. Step 2: Convert to fraction form
   87,410.50/191,669 = 191,669/x
3. Step 3: Cross multiply
   87,410.50x = 191,669 × 191,669
4. Step 4: Simplify right side
   87,410.50x = 36,737,005,561
5. Step 5: Solve for x
   x = 36,737,005,561/87,410.50
6. Step 6: Final answer
   x = 420,281.38