Finding the Third Proportional to 1,273,830 and 1,988,262

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273,830 : 1,988,262 = 1,988,262 : x
2. Step 2: Convert to fraction form
   1,273,830/1,988,262 = 1,988,262/x
3. Step 3: Cross multiply
   1,273,830x = 1,988,262 × 1,988,262
4. Step 4: Simplify right side
   1,273,830x = 3,953,185,780,644
5. Step 5: Solve for x
   x = 3,953,185,780,644/1,273,830
6. Step 6: Final answer
   x = 3,103,385.68