Finding the Third Proportional to 1,218,782 and 2,640,946

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,782 : 2,640,946 = 2,640,946 : x
2. Step 2: Convert to fraction form
   1,218,782/2,640,946 = 2,640,946/x
3. Step 3: Cross multiply
   1,218,782x = 2,640,946 × 2,640,946
4. Step 4: Simplify right side
   1,218,782x = 6,974,595,774,916
5. Step 5: Solve for x
   x = 6,974,595,774,916/1,218,782
6. Step 6: Final answer
   x = 5,722,595.00