Finding the Third Proportional to 87,847.50 and 192,408

Step by Step Solution

1. Step 1: Write the proportion equation
   87,847.50 : 192,408 = 192,408 : x
2. Step 2: Convert to fraction form
   87,847.50/192,408 = 192,408/x
3. Step 3: Cross multiply
   87,847.50x = 192,408 × 192,408
4. Step 4: Simplify right side
   87,847.50x = 37,020,838,464
5. Step 5: Solve for x
   x = 37,020,838,464/87,847.50
6. Step 6: Final answer
   x = 421,421.65