Finding the Third Proportional to 216,045 and 338,233.50

Step by Step Solution

1. Step 1: Write the proportion equation
   216,045 : 338,233.50 = 338,233.50 : x
2. Step 2: Convert to fraction form
   216,045/338,233.50 = 338,233.50/x
3. Step 3: Cross multiply
   216,045x = 338,233.50 × 338,233.50
4. Step 4: Simplify right side
   216,045x = 114,401,900,522.25
5. Step 5: Solve for x
   x = 114,401,900,522.25/216,045
6. Step 6: Final answer
   x = 529,528.11