Finding the Third Proportional to 5,139,318 and 7,230,888

Step by Step Solution

1. Step 1: Write the proportion equation
   5,139,318 : 7,230,888 = 7,230,888 : x
2. Step 2: Convert to fraction form
   5,139,318/7,230,888 = 7,230,888/x
3. Step 3: Cross multiply
   5,139,318x = 7,230,888 × 7,230,888
4. Step 4: Simplify right side
   5,139,318x = 52,285,741,268,544
5. Step 5: Solve for x
   x = 52,285,741,268,544/5,139,318
6. Step 6: Final answer
   x = 10,173,673.10