Finding the Third Proportional to 397,368 and 862,012

Step by Step Solution

1. Step 1: Write the proportion equation
   397,368 : 862,012 = 862,012 : x
2. Step 2: Convert to fraction form
   397,368/862,012 = 862,012/x
3. Step 3: Cross multiply
   397,368x = 862,012 × 862,012
4. Step 4: Simplify right side
   397,368x = 743,064,688,144
5. Step 5: Solve for x
   x = 743,064,688,144/397,368
6. Step 6: Final answer
   x = 1,869,966.10