Finding the Third Proportional to 4,212,984 and 9,076,778

Step by Step Solution

1. Step 1: Write the proportion equation
   4,212,984 : 9,076,778 = 9,076,778 : x
2. Step 2: Convert to fraction form
   4,212,984/9,076,778 = 9,076,778/x
3. Step 3: Cross multiply
   4,212,984x = 9,076,778 × 9,076,778
4. Step 4: Simplify right side
   4,212,984x = 82,387,898,861,284
5. Step 5: Solve for x
   x = 82,387,898,861,284/4,212,984
6. Step 6: Final answer
   x = 19,555,711.31