Finding the Third Proportional to 4,799,984 and 10,139,536

Step by Step Solution

1. Step 1: Write the proportion equation
   4,799,984 : 10,139,536 = 10,139,536 : x
2. Step 2: Convert to fraction form
   4,799,984/10,139,536 = 10,139,536/x
3. Step 3: Cross multiply
   4,799,984x = 10,139,536 × 10,139,536
4. Step 4: Simplify right side
   4,799,984x = 102,810,190,295,296
5. Step 5: Solve for x
   x = 102,810,190,295,296/4,799,984
6. Step 6: Final answer
   x = 21,418,861.04