Finding the Third Proportional to 1,260,690 and 1,886,580

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260,690 : 1,886,580 = 1,886,580 : x
2. Step 2: Convert to fraction form
   1,260,690/1,886,580 = 1,886,580/x
3. Step 3: Cross multiply
   1,260,690x = 1,886,580 × 1,886,580
4. Step 4: Simplify right side
   1,260,690x = 3,559,184,096,400
5. Step 5: Solve for x
   x = 3,559,184,096,400/1,260,690
6. Step 6: Final answer
   x = 2,823,203.24