Finding the Third Proportional to 1,247,185.69 and 2,686,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,185.69 : 2,686,513.50 = 2,686,513.50 : x
2. Step 2: Convert to fraction form
   1,247,185.69/2,686,513.50 = 2,686,513.50/x
3. Step 3: Cross multiply
   1,247,185.69x = 2,686,513.50 × 2,686,513.50
4. Step 4: Simplify right side
   1,247,185.69x = 7,217,354,785,682.25
5. Step 5: Solve for x
   x = 7,217,354,785,682.25/1,247,185.69
6. Step 6: Final answer
   x = 5,786,912.77