Finding the Third Proportional to 1,005,020 and 2,187,170

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,020 : 2,187,170 = 2,187,170 : x
2. Step 2: Convert to fraction form
   1,005,020/2,187,170 = 2,187,170/x
3. Step 3: Cross multiply
   1,005,020x = 2,187,170 × 2,187,170
4. Step 4: Simplify right side
   1,005,020x = 4,783,712,608,900
5. Step 5: Solve for x
   x = 4,783,712,608,900/1,005,020
6. Step 6: Final answer
   x = 4,759,818.32