Finding the Third Proportional to 308,178,514 and 659,992,412

Step by Step Solution

1. Step 1: Write the proportion equation
   308,178,514 : 659,992,412 = 659,992,412 : x
2. Step 2: Convert to fraction form
   308,178,514/659,992,412 = 659,992,412/x
3. Step 3: Cross multiply
   308,178,514x = 659,992,412 × 659,992,412
4. Step 4: Simplify right side
   308,178,514x = 435,589,983,897,577,728
5. Step 5: Solve for x
   x = 435,589,983,897,577,728/308,178,514
6. Step 6: Final answer
   x = 1,413,433,980.99