Finding the Third Proportional to 212,172 and 463,710

Step by Step Solution

1. Step 1: Write the proportion equation
   212,172 : 463,710 = 463,710 : x
2. Step 2: Convert to fraction form
   212,172/463,710 = 463,710/x
3. Step 3: Cross multiply
   212,172x = 463,710 × 463,710
4. Step 4: Simplify right side
   212,172x = 215,026,964,100
5. Step 5: Solve for x
   x = 215,026,964,100/212,172
6. Step 6: Final answer
   x = 1,013,455.89