Finding the Third Proportional to 207,686,710 and 443,171,216

Step by Step Solution

1. Step 1: Write the proportion equation
   207,686,710 : 443,171,216 = 443,171,216 : x
2. Step 2: Convert to fraction form
   207,686,710/443,171,216 = 443,171,216/x
3. Step 3: Cross multiply
   207,686,710x = 443,171,216 × 443,171,216
4. Step 4: Simplify right side
   207,686,710x = 196,400,726,690,918,656
5. Step 5: Solve for x
   x = 196,400,726,690,918,656/207,686,710
6. Step 6: Final answer
   x = 945,658,615.76