Finding the Third Proportional to 9,897,758 and 20,700,492

Step by Step Solution

1. Step 1: Write the proportion equation
   9,897,758 : 20,700,492 = 20,700,492 : x
2. Step 2: Convert to fraction form
   9,897,758/20,700,492 = 20,700,492/x
3. Step 3: Cross multiply
   9,897,758x = 20,700,492 × 20,700,492
4. Step 4: Simplify right side
   9,897,758x = 428,510,369,042,064
5. Step 5: Solve for x
   x = 428,510,369,042,064/9,897,758
6. Step 6: Final answer
   x = 43,293,680.15