Finding the Third Proportional to 1,290,192 and 2,734,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,192 : 2,734,200 = 2,734,200 : x
2. Step 2: Convert to fraction form
   1,290,192/2,734,200 = 2,734,200/x
3. Step 3: Cross multiply
   1,290,192x = 2,734,200 × 2,734,200
4. Step 4: Simplify right side
   1,290,192x = 7,475,849,640,000
5. Step 5: Solve for x
   x = 7,475,849,640,000/1,290,192
6. Step 6: Final answer
   x = 5,794,369.86