Finding the Third Proportional to 803,222 and 1,689,276

Step by Step Solution

1. Step 1: Write the proportion equation
   803,222 : 1,689,276 = 1,689,276 : x
2. Step 2: Convert to fraction form
   803,222/1,689,276 = 1,689,276/x
3. Step 3: Cross multiply
   803,222x = 1,689,276 × 1,689,276
4. Step 4: Simplify right side
   803,222x = 2,853,653,404,176
5. Step 5: Solve for x
   x = 2,853,653,404,176/803,222
6. Step 6: Final answer
   x = 3,552,758.02