Finding the Third Proportional to 1,778,490 and 2,758,011

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,490 : 2,758,011 = 2,758,011 : x
2. Step 2: Convert to fraction form
   1,778,490/2,758,011 = 2,758,011/x
3. Step 3: Cross multiply
   1,778,490x = 2,758,011 × 2,758,011
4. Step 4: Simplify right side
   1,778,490x = 7,606,624,676,121
5. Step 5: Solve for x
   x = 7,606,624,676,121/1,778,490
6. Step 6: Final answer
   x = 4,277,012.90