Finding the Third Proportional to 688,368 and 1,012,288

Step by Step Solution

1. Step 1: Write the proportion equation
   688,368 : 1,012,288 = 1,012,288 : x
2. Step 2: Convert to fraction form
   688,368/1,012,288 = 1,012,288/x
3. Step 3: Cross multiply
   688,368x = 1,012,288 × 1,012,288
4. Step 4: Simplify right side
   688,368x = 1,024,726,994,944
5. Step 5: Solve for x
   x = 1,024,726,994,944/688,368
6. Step 6: Final answer
   x = 1,488,632.53