Finding the Third Proportional to 1,248,790 and 1,859,361

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,790 : 1,859,361 = 1,859,361 : x
2. Step 2: Convert to fraction form
   1,248,790/1,859,361 = 1,859,361/x
3. Step 3: Cross multiply
   1,248,790x = 1,859,361 × 1,859,361
4. Step 4: Simplify right side
   1,248,790x = 3,457,223,328,321
5. Step 5: Solve for x
   x = 3,457,223,328,321/1,248,790
6. Step 6: Final answer
   x = 2,768,458.53