Finding the Third Proportional to 1,858,144 and 2,715,490

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858,144 : 2,715,490 = 2,715,490 : x
2. Step 2: Convert to fraction form
   1,858,144/2,715,490 = 2,715,490/x
3. Step 3: Cross multiply
   1,858,144x = 2,715,490 × 2,715,490
4. Step 4: Simplify right side
   1,858,144x = 7,373,885,940,100
5. Step 5: Solve for x
   x = 7,373,885,940,100/1,858,144
6. Step 6: Final answer
   x = 3,968,414.69