Finding the Third Proportional to 8,561,438 and 12,535,003

Step by Step Solution

1. Step 1: Write the proportion equation
   8,561,438 : 12,535,003 = 12,535,003 : x
2. Step 2: Convert to fraction form
   8,561,438/12,535,003 = 12,535,003/x
3. Step 3: Cross multiply
   8,561,438x = 12,535,003 × 12,535,003
4. Step 4: Simplify right side
   8,561,438x = 157,126,300,210,009
5. Step 5: Solve for x
   x = 157,126,300,210,009/8,561,438
6. Step 6: Final answer
   x = 18,352,793.10