Finding the Third Proportional to 8,971,806 and 19,457,988

Step by Step Solution

1. Step 1: Write the proportion equation
   8,971,806 : 19,457,988 = 19,457,988 : x
2. Step 2: Convert to fraction form
   8,971,806/19,457,988 = 19,457,988/x
3. Step 3: Cross multiply
   8,971,806x = 19,457,988 × 19,457,988
4. Step 4: Simplify right side
   8,971,806x = 378,613,297,008,144
5. Step 5: Solve for x
   x = 378,613,297,008,144/8,971,806
6. Step 6: Final answer
   x = 42,200,343.72