Finding the Third Proportional to 5,172,259 and 10,880,455

Step by Step Solution

1. Step 1: Write the proportion equation
   5,172,259 : 10,880,455 = 10,880,455 : x
2. Step 2: Convert to fraction form
   5,172,259/10,880,455 = 10,880,455/x
3. Step 3: Cross multiply
   5,172,259x = 10,880,455 × 10,880,455
4. Step 4: Simplify right side
   5,172,259x = 118,384,301,007,025
5. Step 5: Solve for x
   x = 118,384,301,007,025/5,172,259
6. Step 6: Final answer
   x = 22,888,316.50