Finding the Third Proportional to 661,436 and 1,448,990

Step by Step Solution

1. Step 1: Write the proportion equation
   661,436 : 1,448,990 = 1,448,990 : x
2. Step 2: Convert to fraction form
   661,436/1,448,990 = 1,448,990/x
3. Step 3: Cross multiply
   661,436x = 1,448,990 × 1,448,990
4. Step 4: Simplify right side
   661,436x = 2,099,572,020,100
5. Step 5: Solve for x
   x = 2,099,572,020,100/661,436
6. Step 6: Final answer
   x = 3,174,263.30