Finding the Third Proportional to 547,367.63 and 871,642.69

Step by Step Solution

1. Step 1: Write the proportion equation
   547,367.63 : 871,642.69 = 871,642.69 : x
2. Step 2: Convert to fraction form
   547,367.63/871,642.69 = 871,642.69/x
3. Step 3: Cross multiply
   547,367.63x = 871,642.69 × 871,642.69
4. Step 4: Simplify right side
   547,367.63x = 759,760,974,672.22
5. Step 5: Solve for x
   x = 759,760,974,672.22/547,367.63
6. Step 6: Final answer
   x = 1,388,026.88