Finding the Third Proportional to 803,664 and 1,213,648

Step by Step Solution

1. Step 1: Write the proportion equation
   803,664 : 1,213,648 = 1,213,648 : x
2. Step 2: Convert to fraction form
   803,664/1,213,648 = 1,213,648/x
3. Step 3: Cross multiply
   803,664x = 1,213,648 × 1,213,648
4. Step 4: Simplify right side
   803,664x = 1,472,941,467,904
5. Step 5: Solve for x
   x = 1,472,941,467,904/803,664
6. Step 6: Final answer
   x = 1,832,782.69