Finding the Third Proportional to 4,870,488 and 7,756,740

Step by Step Solution

1. Step 1: Write the proportion equation
   4,870,488 : 7,756,740 = 7,756,740 : x
2. Step 2: Convert to fraction form
   4,870,488/7,756,740 = 7,756,740/x
3. Step 3: Cross multiply
   4,870,488x = 7,756,740 × 7,756,740
4. Step 4: Simplify right side
   4,870,488x = 60,167,015,427,600
5. Step 5: Solve for x
   x = 60,167,015,427,600/4,870,488
6. Step 6: Final answer
   x = 12,353,385.42