Finding the Third Proportional to 5,565,621 and 8,513,949

Step by Step Solution

1. Step 1: Write the proportion equation
   5,565,621 : 8,513,949 = 8,513,949 : x
2. Step 2: Convert to fraction form
   5,565,621/8,513,949 = 8,513,949/x
3. Step 3: Cross multiply
   5,565,621x = 8,513,949 × 8,513,949
4. Step 4: Simplify right side
   5,565,621x = 72,487,327,574,601
5. Step 5: Solve for x
   x = 72,487,327,574,601/5,565,621
6. Step 6: Final answer
   x = 13,024,122.12