Finding the Third Proportional to 217,233 and 322,462.50

Step by Step Solution

1. Step 1: Write the proportion equation
   217,233 : 322,462.50 = 322,462.50 : x
2. Step 2: Convert to fraction form
   217,233/322,462.50 = 322,462.50/x
3. Step 3: Cross multiply
   217,233x = 322,462.50 × 322,462.50
4. Step 4: Simplify right side
   217,233x = 103,982,063,906.25
5. Step 5: Solve for x
   x = 103,982,063,906.25/217,233
6. Step 6: Final answer
   x = 478,666.06