Finding the Third Proportional to 5,149,748 and 7,790,888

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,748 : 7,790,888 = 7,790,888 : x
2. Step 2: Convert to fraction form
   5,149,748/7,790,888 = 7,790,888/x
3. Step 3: Cross multiply
   5,149,748x = 7,790,888 × 7,790,888
4. Step 4: Simplify right side
   5,149,748x = 60,697,935,828,544
5. Step 5: Solve for x
   x = 60,697,935,828,544/5,149,748
6. Step 6: Final answer
   x = 11,786,583.70