Finding the Third Proportional to 1,139,480 and 1,691,652

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,480 : 1,691,652 = 1,691,652 : x
2. Step 2: Convert to fraction form
   1,139,480/1,691,652 = 1,691,652/x
3. Step 3: Cross multiply
   1,139,480x = 1,691,652 × 1,691,652
4. Step 4: Simplify right side
   1,139,480x = 2,861,686,489,104
5. Step 5: Solve for x
   x = 2,861,686,489,104/1,139,480
6. Step 6: Final answer
   x = 2,511,396.86