Finding the Third Proportional to 8,617,479 and 13,105,269

Step by Step Solution

1. Step 1: Write the proportion equation
   8,617,479 : 13,105,269 = 13,105,269 : x
2. Step 2: Convert to fraction form
   8,617,479/13,105,269 = 13,105,269/x
3. Step 3: Cross multiply
   8,617,479x = 13,105,269 × 13,105,269
4. Step 4: Simplify right side
   8,617,479x = 171,748,075,562,361
5. Step 5: Solve for x
   x = 171,748,075,562,361/8,617,479
6. Step 6: Final answer
   x = 19,930,199.49