Finding the Third Proportional to 7,687,804 and 10,813,864

Step by Step Solution

1. Step 1: Write the proportion equation
   7,687,804 : 10,813,864 = 10,813,864 : x
2. Step 2: Convert to fraction form
   7,687,804/10,813,864 = 10,813,864/x
3. Step 3: Cross multiply
   7,687,804x = 10,813,864 × 10,813,864
4. Step 4: Simplify right side
   7,687,804x = 116,939,654,610,496
5. Step 5: Solve for x
   x = 116,939,654,610,496/7,687,804
6. Step 6: Final answer
   x = 15,211,060.87