Finding the Third Proportional to 1,000,220 and 1,429,289

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,220 : 1,429,289 = 1,429,289 : x
2. Step 2: Convert to fraction form
   1,000,220/1,429,289 = 1,429,289/x
3. Step 3: Cross multiply
   1,000,220x = 1,429,289 × 1,429,289
4. Step 4: Simplify right side
   1,000,220x = 2,042,867,045,521
5. Step 5: Solve for x
   x = 2,042,867,045,521/1,000,220
6. Step 6: Final answer
   x = 2,042,417.71