Finding the Third Proportional to 9,145,611 and 13,145,454

Step by Step Solution

1. Step 1: Write the proportion equation
   9,145,611 : 13,145,454 = 13,145,454 : x
2. Step 2: Convert to fraction form
   9,145,611/13,145,454 = 13,145,454/x
3. Step 3: Cross multiply
   9,145,611x = 13,145,454 × 13,145,454
4. Step 4: Simplify right side
   9,145,611x = 172,802,960,866,116
5. Step 5: Solve for x
   x = 172,802,960,866,116/9,145,611
6. Step 6: Final answer
   x = 18,894,632.72