Finding the Third Proportional to 1,997,290 and 4,274,516

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997,290 : 4,274,516 = 4,274,516 : x
2. Step 2: Convert to fraction form
   1,997,290/4,274,516 = 4,274,516/x
3. Step 3: Cross multiply
   1,997,290x = 4,274,516 × 4,274,516
4. Step 4: Simplify right side
   1,997,290x = 18,271,487,034,256
5. Step 5: Solve for x
   x = 18,271,487,034,256/1,997,290
6. Step 6: Final answer
   x = 9,148,139.25