Finding the Third Proportional to 3,686,116 and 7,666,416

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686,116 : 7,666,416 = 7,666,416 : x
2. Step 2: Convert to fraction form
   3,686,116/7,666,416 = 7,666,416/x
3. Step 3: Cross multiply
   3,686,116x = 7,666,416 × 7,666,416
4. Step 4: Simplify right side
   3,686,116x = 58,773,934,285,056
5. Step 5: Solve for x
   x = 58,773,934,285,056/3,686,116
6. Step 6: Final answer
   x = 15,944,678.43