Finding the Third Proportional to 4,061,623 and 8,920,453

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061,623 : 8,920,453 = 8,920,453 : x
2. Step 2: Convert to fraction form
   4,061,623/8,920,453 = 8,920,453/x
3. Step 3: Cross multiply
   4,061,623x = 8,920,453 × 8,920,453
4. Step 4: Simplify right side
   4,061,623x = 79,574,481,725,209
5. Step 5: Solve for x
   x = 79,574,481,725,209/4,061,623
6. Step 6: Final answer
   x = 19,591,794.15