Finding the Third Proportional to 6,472,168 and 10,785,666

Step by Step Solution

1. Step 1: Write the proportion equation
   6,472,168 : 10,785,666 = 10,785,666 : x
2. Step 2: Convert to fraction form
   6,472,168/10,785,666 = 10,785,666/x
3. Step 3: Cross multiply
   6,472,168x = 10,785,666 × 10,785,666
4. Step 4: Simplify right side
   6,472,168x = 116,330,591,063,556
5. Step 5: Solve for x
   x = 116,330,591,063,556/6,472,168
6. Step 6: Final answer
   x = 17,973,975.81