Finding the Third Proportional to 688,436 and 1,499,354

Step by Step Solution

1. Step 1: Write the proportion equation
   688,436 : 1,499,354 = 1,499,354 : x
2. Step 2: Convert to fraction form
   688,436/1,499,354 = 1,499,354/x
3. Step 3: Cross multiply
   688,436x = 1,499,354 × 1,499,354
4. Step 4: Simplify right side
   688,436x = 2,248,062,417,316
5. Step 5: Solve for x
   x = 2,248,062,417,316/688,436
6. Step 6: Final answer
   x = 3,265,463.19