Finding the Third Proportional to 2,710,128 and 4,198,840

Step by Step Solution

1. Step 1: Write the proportion equation
   2,710,128 : 4,198,840 = 4,198,840 : x
2. Step 2: Convert to fraction form
   2,710,128/4,198,840 = 4,198,840/x
3. Step 3: Cross multiply
   2,710,128x = 4,198,840 × 4,198,840
4. Step 4: Simplify right side
   2,710,128x = 17,630,257,345,600
5. Step 5: Solve for x
   x = 17,630,257,345,600/2,710,128
6. Step 6: Final answer
   x = 6,505,322.75