Finding the Third Proportional to 294,606,540 and 443,139,798

Step by Step Solution

1. Step 1: Write the proportion equation
   294,606,540 : 443,139,798 = 443,139,798 : x
2. Step 2: Convert to fraction form
   294,606,540/443,139,798 = 443,139,798/x
3. Step 3: Cross multiply
   294,606,540x = 443,139,798 × 443,139,798
4. Step 4: Simplify right side
   294,606,540x = 196,372,880,571,480,800
5. Step 5: Solve for x
   x = 196,372,880,571,480,800/294,606,540
6. Step 6: Final answer
   x = 666,559,814.22