Finding the Third Proportional to 1,299,668 and 2,898,178

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299,668 : 2,898,178 = 2,898,178 : x
2. Step 2: Convert to fraction form
   1,299,668/2,898,178 = 2,898,178/x
3. Step 3: Cross multiply
   1,299,668x = 2,898,178 × 2,898,178
4. Step 4: Simplify right side
   1,299,668x = 8,399,435,719,684
5. Step 5: Solve for x
   x = 8,399,435,719,684/1,299,668
6. Step 6: Final answer
   x = 6,462,754.89