Finding the Third Proportional to 5,086,448 and 7,129,700

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086,448 : 7,129,700 = 7,129,700 : x
2. Step 2: Convert to fraction form
   5,086,448/7,129,700 = 7,129,700/x
3. Step 3: Cross multiply
   5,086,448x = 7,129,700 × 7,129,700
4. Step 4: Simplify right side
   5,086,448x = 50,832,622,090,000
5. Step 5: Solve for x
   x = 50,832,622,090,000/5,086,448
6. Step 6: Final answer
   x = 9,993,736.71