Finding the Third Proportional to 19,902,495 and 42,571,613

Step by Step Solution

1. Step 1: Write the proportion equation
   19,902,495 : 42,571,613 = 42,571,613 : x
2. Step 2: Convert to fraction form
   19,902,495/42,571,613 = 42,571,613/x
3. Step 3: Cross multiply
   19,902,495x = 42,571,613 × 42,571,613
4. Step 4: Simplify right side
   19,902,495x = 1,812,342,233,421,769
5. Step 5: Solve for x
   x = 1,812,342,233,421,769/19,902,495
6. Step 6: Final answer
   x = 91,061,057.09