Finding the Third Proportional to 4,497,720 and 9,870,492

Step by Step Solution

1. Step 1: Write the proportion equation
   4,497,720 : 9,870,492 = 9,870,492 : x
2. Step 2: Convert to fraction form
   4,497,720/9,870,492 = 9,870,492/x
3. Step 3: Cross multiply
   4,497,720x = 9,870,492 × 9,870,492
4. Step 4: Simplify right side
   4,497,720x = 97,426,612,322,064
5. Step 5: Solve for x
   x = 97,426,612,322,064/4,497,720
6. Step 6: Final answer
   x = 21,661,333.37