Finding the Third Proportional to 8,773,359 and 13,638,479

Step by Step Solution

1. Step 1: Write the proportion equation
   8,773,359 : 13,638,479 = 13,638,479 : x
2. Step 2: Convert to fraction form
   8,773,359/13,638,479 = 13,638,479/x
3. Step 3: Cross multiply
   8,773,359x = 13,638,479 × 13,638,479
4. Step 4: Simplify right side
   8,773,359x = 186,008,109,433,441
5. Step 5: Solve for x
   x = 186,008,109,433,441/8,773,359
6. Step 6: Final answer
   x = 21,201,470.20