Finding the Third Proportional to 212,910.50 and 463,621

Step by Step Solution

1. Step 1: Write the proportion equation
   212,910.50 : 463,621 = 463,621 : x
2. Step 2: Convert to fraction form
   212,910.50/463,621 = 463,621/x
3. Step 3: Cross multiply
   212,910.50x = 463,621 × 463,621
4. Step 4: Simplify right side
   212,910.50x = 214,944,431,641
5. Step 5: Solve for x
   x = 214,944,431,641/212,910.50
6. Step 6: Final answer
   x = 1,009,552.99