Finding the Third Proportional to 4,606,566 and 9,508,188

Step by Step Solution

1. Step 1: Write the proportion equation
   4,606,566 : 9,508,188 = 9,508,188 : x
2. Step 2: Convert to fraction form
   4,606,566/9,508,188 = 9,508,188/x
3. Step 3: Cross multiply
   4,606,566x = 9,508,188 × 9,508,188
4. Step 4: Simplify right side
   4,606,566x = 90,405,639,043,344
5. Step 5: Solve for x
   x = 90,405,639,043,344/4,606,566
6. Step 6: Final answer
   x = 19,625,386.69