Finding the Third Proportional to 207,687,440 and 443,172,704

Step by Step Solution

1. Step 1: Write the proportion equation
   207,687,440 : 443,172,704 = 443,172,704 : x
2. Step 2: Convert to fraction form
   207,687,440/443,172,704 = 443,172,704/x
3. Step 3: Cross multiply
   207,687,440x = 443,172,704 × 443,172,704
4. Step 4: Simplify right side
   207,687,440x = 196,402,045,570,671,616
5. Step 5: Solve for x
   x = 196,402,045,570,671,616/207,687,440
6. Step 6: Final answer
   x = 945,661,642.18