Finding the Third Proportional to 689,914 and 1,030,615

Step by Step Solution

1. Step 1: Write the proportion equation
   689,914 : 1,030,615 = 1,030,615 : x
2. Step 2: Convert to fraction form
   689,914/1,030,615 = 1,030,615/x
3. Step 3: Cross multiply
   689,914x = 1,030,615 × 1,030,615
4. Step 4: Simplify right side
   689,914x = 1,062,167,278,225
5. Step 5: Solve for x
   x = 1,062,167,278,225/689,914
6. Step 6: Final answer
   x = 1,539,564.75