Finding the Third Proportional to 873,300 and 1,388,681

Step by Step Solution

1. Step 1: Write the proportion equation
   873,300 : 1,388,681 = 1,388,681 : x
2. Step 2: Convert to fraction form
   873,300/1,388,681 = 1,388,681/x
3. Step 3: Cross multiply
   873,300x = 1,388,681 × 1,388,681
4. Step 4: Simplify right side
   873,300x = 1,928,434,919,761
5. Step 5: Solve for x
   x = 1,928,434,919,761/873,300
6. Step 6: Final answer
   x = 2,208,215.87