Finding the Third Proportional to 672,990 and 1,034,424

Step by Step Solution

1. Step 1: Write the proportion equation
   672,990 : 1,034,424 = 1,034,424 : x
2. Step 2: Convert to fraction form
   672,990/1,034,424 = 1,034,424/x
3. Step 3: Cross multiply
   672,990x = 1,034,424 × 1,034,424
4. Step 4: Simplify right side
   672,990x = 1,070,033,011,776
5. Step 5: Solve for x
   x = 1,070,033,011,776/672,990
6. Step 6: Final answer
   x = 1,589,968.66