Finding the Third Proportional to 3,785,315.50 and 8,209,507.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785,315.50 : 8,209,507.50 = 8,209,507.50 : x
2. Step 2: Convert to fraction form
   3,785,315.50/8,209,507.50 = 8,209,507.50/x
3. Step 3: Cross multiply
   3,785,315.50x = 8,209,507.50 × 8,209,507.50
4. Step 4: Simplify right side
   3,785,315.50x = 67,396,013,392,556.25
5. Step 5: Solve for x
   x = 67,396,013,392,556.25/3,785,315.50
6. Step 6: Final answer
   x = 17,804,596.05