Finding the Third Proportional to 864,212 and 1,244,929

Step by Step Solution

1. Step 1: Write the proportion equation
   864,212 : 1,244,929 = 1,244,929 : x
2. Step 2: Convert to fraction form
   864,212/1,244,929 = 1,244,929/x
3. Step 3: Cross multiply
   864,212x = 1,244,929 × 1,244,929
4. Step 4: Simplify right side
   864,212x = 1,549,848,215,041
5. Step 5: Solve for x
   x = 1,549,848,215,041/864,212
6. Step 6: Final answer
   x = 1,793,365.77