Finding the Third Proportional to 3,853,689.75 and 8,299,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,853,689.75 : 8,299,300.50 = 8,299,300.50 : x
2. Step 2: Convert to fraction form
   3,853,689.75/8,299,300.50 = 8,299,300.50/x
3. Step 3: Cross multiply
   3,853,689.75x = 8,299,300.50 × 8,299,300.50
4. Step 4: Simplify right side
   3,853,689.75x = 68,878,388,789,300.25
5. Step 5: Solve for x
   x = 68,878,388,789,300.25/3,853,689.75
6. Step 6: Final answer
   x = 17,873,361.18