Finding the Third Proportional to 3,848,487 and 8,307,138

Step by Step Solution

1. Step 1: Write the proportion equation
   3,848,487 : 8,307,138 = 8,307,138 : x
2. Step 2: Convert to fraction form
   3,848,487/8,307,138 = 8,307,138/x
3. Step 3: Cross multiply
   3,848,487x = 8,307,138 × 8,307,138
4. Step 4: Simplify right side
   3,848,487x = 69,008,541,751,044
5. Step 5: Solve for x
   x = 69,008,541,751,044/3,848,487
6. Step 6: Final answer
   x = 17,931,343.34