Finding the Third Proportional to 1,276,580 and 1,890,222

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276,580 : 1,890,222 = 1,890,222 : x
2. Step 2: Convert to fraction form
   1,276,580/1,890,222 = 1,890,222/x
3. Step 3: Cross multiply
   1,276,580x = 1,890,222 × 1,890,222
4. Step 4: Simplify right side
   1,276,580x = 3,572,939,209,284
5. Step 5: Solve for x
   x = 3,572,939,209,284/1,276,580
6. Step 6: Final answer
   x = 2,798,836.90