Finding the Third Proportional to 5,517,888 and 8,513,008

Step by Step Solution

1. Step 1: Write the proportion equation
   5,517,888 : 8,513,008 = 8,513,008 : x
2. Step 2: Convert to fraction form
   5,517,888/8,513,008 = 8,513,008/x
3. Step 3: Cross multiply
   5,517,888x = 8,513,008 × 8,513,008
4. Step 4: Simplify right side
   5,517,888x = 72,471,305,208,064
5. Step 5: Solve for x
   x = 72,471,305,208,064/5,517,888
6. Step 6: Final answer
   x = 13,133,884.78