Finding the Third Proportional to 689,472 and 1,011,488

Step by Step Solution

1. Step 1: Write the proportion equation
   689,472 : 1,011,488 = 1,011,488 : x
2. Step 2: Convert to fraction form
   689,472/1,011,488 = 1,011,488/x
3. Step 3: Cross multiply
   689,472x = 1,011,488 × 1,011,488
4. Step 4: Simplify right side
   689,472x = 1,023,107,974,144
5. Step 5: Solve for x
   x = 1,023,107,974,144/689,472
6. Step 6: Final answer
   x = 1,483,900.69