Finding the Third Proportional to 3,902,130 and 8,346,636

Step by Step Solution

1. Step 1: Write the proportion equation
   3,902,130 : 8,346,636 = 8,346,636 : x
2. Step 2: Convert to fraction form
   3,902,130/8,346,636 = 8,346,636/x
3. Step 3: Cross multiply
   3,902,130x = 8,346,636 × 8,346,636
4. Step 4: Simplify right side
   3,902,130x = 69,666,332,516,496
5. Step 5: Solve for x
   x = 69,666,332,516,496/3,902,130
6. Step 6: Final answer
   x = 17,853,411.47