Finding the Third Proportional to 689,846 and 1,030,519

Step by Step Solution

1. Step 1: Write the proportion equation
   689,846 : 1,030,519 = 1,030,519 : x
2. Step 2: Convert to fraction form
   689,846/1,030,519 = 1,030,519/x
3. Step 3: Cross multiply
   689,846x = 1,030,519 × 1,030,519
4. Step 4: Simplify right side
   689,846x = 1,061,969,409,361
5. Step 5: Solve for x
   x = 1,061,969,409,361/689,846
6. Step 6: Final answer
   x = 1,539,429.68