Finding the Third Proportional to 216,308 and 462,508

Step by Step Solution

1. Step 1: Write the proportion equation
   216,308 : 462,508 = 462,508 : x
2. Step 2: Convert to fraction form
   216,308/462,508 = 462,508/x
3. Step 3: Cross multiply
   216,308x = 462,508 × 462,508
4. Step 4: Simplify right side
   216,308x = 213,913,650,064
5. Step 5: Solve for x
   x = 213,913,650,064/216,308
6. Step 6: Final answer
   x = 988,930.83