Finding the Third Proportional to 1,399,237 and 2,160,695

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,237 : 2,160,695 = 2,160,695 : x
2. Step 2: Convert to fraction form
   1,399,237/2,160,695 = 2,160,695/x
3. Step 3: Cross multiply
   1,399,237x = 2,160,695 × 2,160,695
4. Step 4: Simplify right side
   1,399,237x = 4,668,602,883,025
5. Step 5: Solve for x
   x = 4,668,602,883,025/1,399,237
6. Step 6: Final answer
   x = 3,336,534.76