Finding the Third Proportional to 2,020,634 and 4,290,342

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020,634 : 4,290,342 = 4,290,342 : x
2. Step 2: Convert to fraction form
   2,020,634/4,290,342 = 4,290,342/x
3. Step 3: Cross multiply
   2,020,634x = 4,290,342 × 4,290,342
4. Step 4: Simplify right side
   2,020,634x = 18,407,034,476,964
5. Step 5: Solve for x
   x = 18,407,034,476,964/2,020,634
6. Step 6: Final answer
   x = 9,109,534.17