Finding the Third Proportional to 689,914 and 1,030,611

Step by Step Solution

1. Step 1: Write the proportion equation
   689,914 : 1,030,611 = 1,030,611 : x
2. Step 2: Convert to fraction form
   689,914/1,030,611 = 1,030,611/x
3. Step 3: Cross multiply
   689,914x = 1,030,611 × 1,030,611
4. Step 4: Simplify right side
   689,914x = 1,062,159,033,321
5. Step 5: Solve for x
   x = 1,062,159,033,321/689,914
6. Step 6: Final answer
   x = 1,539,552.80