Finding the Third Proportional to 1,208,640 and 1,886,520

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208,640 : 1,886,520 = 1,886,520 : x
2. Step 2: Convert to fraction form
   1,208,640/1,886,520 = 1,886,520/x
3. Step 3: Cross multiply
   1,208,640x = 1,886,520 × 1,886,520
4. Step 4: Simplify right side
   1,208,640x = 3,558,957,710,400
5. Step 5: Solve for x
   x = 3,558,957,710,400/1,208,640
6. Step 6: Final answer
   x = 2,944,596.99