Finding the Third Proportional to 1,020,638 and 1,501,429

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020,638 : 1,501,429 = 1,501,429 : x
2. Step 2: Convert to fraction form
   1,020,638/1,501,429 = 1,501,429/x
3. Step 3: Cross multiply
   1,020,638x = 1,501,429 × 1,501,429
4. Step 4: Simplify right side
   1,020,638x = 2,254,289,042,041
5. Step 5: Solve for x
   x = 2,254,289,042,041/1,020,638
6. Step 6: Final answer
   x = 2,208,705.77