Finding the Third Proportional to 90,854.50 and 212,212

Step by Step Solution

1. Step 1: Write the proportion equation
   90,854.50 : 212,212 = 212,212 : x
2. Step 2: Convert to fraction form
   90,854.50/212,212 = 212,212/x
3. Step 3: Cross multiply
   90,854.50x = 212,212 × 212,212
4. Step 4: Simplify right side
   90,854.50x = 45,033,932,944
5. Step 5: Solve for x
   x = 45,033,932,944/90,854.50
6. Step 6: Final answer
   x = 495,670.91