Finding the Third Proportional to 5,302,089 and 8,409,123

Step by Step Solution

1. Step 1: Write the proportion equation
   5,302,089 : 8,409,123 = 8,409,123 : x
2. Step 2: Convert to fraction form
   5,302,089/8,409,123 = 8,409,123/x
3. Step 3: Cross multiply
   5,302,089x = 8,409,123 × 8,409,123
4. Step 4: Simplify right side
   5,302,089x = 70,713,349,629,129
5. Step 5: Solve for x
   x = 70,713,349,629,129/5,302,089
6. Step 6: Final answer
   x = 13,336,884.69