Finding the Third Proportional to 909,212 and 1,363,818

Step by Step Solution

1. Step 1: Write the proportion equation
   909,212 : 1,363,818 = 1,363,818 : x
2. Step 2: Convert to fraction form
   909,212/1,363,818 = 1,363,818/x
3. Step 3: Cross multiply
   909,212x = 1,363,818 × 1,363,818
4. Step 4: Simplify right side
   909,212x = 1,859,999,537,124
5. Step 5: Solve for x
   x = 1,859,999,537,124/909,212
6. Step 6: Final answer
   x = 2,045,727