Finding the Third Proportional to 212,910 and 463,620

Step by Step Solution

1. Step 1: Write the proportion equation
   212,910 : 463,620 = 463,620 : x
2. Step 2: Convert to fraction form
   212,910/463,620 = 463,620/x
3. Step 3: Cross multiply
   212,910x = 463,620 × 463,620
4. Step 4: Simplify right side
   212,910x = 214,943,504,400
5. Step 5: Solve for x
   x = 214,943,504,400/212,910
6. Step 6: Final answer
   x = 1,009,551.00