Finding the Third Proportional to 699,126 and 1,489,764

Step by Step Solution

1. Step 1: Write the proportion equation
   699,126 : 1,489,764 = 1,489,764 : x
2. Step 2: Convert to fraction form
   699,126/1,489,764 = 1,489,764/x
3. Step 3: Cross multiply
   699,126x = 1,489,764 × 1,489,764
4. Step 4: Simplify right side
   699,126x = 2,219,396,775,696
5. Step 5: Solve for x
   x = 2,219,396,775,696/699,126
6. Step 6: Final answer
   x = 3,174,530.45