Finding the Third Proportional to 5,564,816 and 8,464,056

Step by Step Solution

1. Step 1: Write the proportion equation
   5,564,816 : 8,464,056 = 8,464,056 : x
2. Step 2: Convert to fraction form
   5,564,816/8,464,056 = 8,464,056/x
3. Step 3: Cross multiply
   5,564,816x = 8,464,056 × 8,464,056
4. Step 4: Simplify right side
   5,564,816x = 71,640,243,971,136
5. Step 5: Solve for x
   x = 71,640,243,971,136/5,564,816
6. Step 6: Final answer
   x = 12,873,784.86