Finding the Third Proportional to 1,538,888 and 2,640,472

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,888 : 2,640,472 = 2,640,472 : x
2. Step 2: Convert to fraction form
   1,538,888/2,640,472 = 2,640,472/x
3. Step 3: Cross multiply
   1,538,888x = 2,640,472 × 2,640,472
4. Step 4: Simplify right side
   1,538,888x = 6,972,092,382,784
5. Step 5: Solve for x
   x = 6,972,092,382,784/1,538,888
6. Step 6: Final answer
   x = 4,530,604.17