Finding the Third Proportional to 687,112 and 1,069,932

Step by Step Solution

1. Step 1: Write the proportion equation
   687,112 : 1,069,932 = 1,069,932 : x
2. Step 2: Convert to fraction form
   687,112/1,069,932 = 1,069,932/x
3. Step 3: Cross multiply
   687,112x = 1,069,932 × 1,069,932
4. Step 4: Simplify right side
   687,112x = 1,144,754,484,624
5. Step 5: Solve for x
   x = 1,144,754,484,624/687,112
6. Step 6: Final answer
   x = 1,666,037.68