Finding the Third Proportional to 1,000,218 and 1,429,290

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,218 : 1,429,290 = 1,429,290 : x
2. Step 2: Convert to fraction form
   1,000,218/1,429,290 = 1,429,290/x
3. Step 3: Cross multiply
   1,000,218x = 1,429,290 × 1,429,290
4. Step 4: Simplify right side
   1,000,218x = 2,042,869,904,100
5. Step 5: Solve for x
   x = 2,042,869,904,100/1,000,218
6. Step 6: Final answer
   x = 2,042,424.66