Finding the Third Proportional to 3,739,138 and 8,133,412

Step by Step Solution

1. Step 1: Write the proportion equation
   3,739,138 : 8,133,412 = 8,133,412 : x
2. Step 2: Convert to fraction form
   3,739,138/8,133,412 = 8,133,412/x
3. Step 3: Cross multiply
   3,739,138x = 8,133,412 × 8,133,412
4. Step 4: Simplify right side
   3,739,138x = 66,152,390,761,744
5. Step 5: Solve for x
   x = 66,152,390,761,744/3,739,138
6. Step 6: Final answer
   x = 17,691,882.66