Finding the Third Proportional to 1,971,866 and 4,242,622

Step by Step Solution

1. Step 1: Write the proportion equation
   1,971,866 : 4,242,622 = 4,242,622 : x
2. Step 2: Convert to fraction form
   1,971,866/4,242,622 = 4,242,622/x
3. Step 3: Cross multiply
   1,971,866x = 4,242,622 × 4,242,622
4. Step 4: Simplify right side
   1,971,866x = 17,999,841,434,884
5. Step 5: Solve for x
   x = 17,999,841,434,884/1,971,866
6. Step 6: Final answer
   x = 9,128,328.92