Finding the Third Proportional to 3,889,940 and 5,708,790

Step by Step Solution

1. Step 1: Write the proportion equation
   3,889,940 : 5,708,790 = 5,708,790 : x
2. Step 2: Convert to fraction form
   3,889,940/5,708,790 = 5,708,790/x
3. Step 3: Cross multiply
   3,889,940x = 5,708,790 × 5,708,790
4. Step 4: Simplify right side
   3,889,940x = 32,590,283,264,100
5. Step 5: Solve for x
   x = 32,590,283,264,100/3,889,940
6. Step 6: Final answer
   x = 8,378,094.07