Finding the Third Proportional to 79,654,566 and 123,019,321

Step by Step Solution

1. Step 1: Write the proportion equation
   79,654,566 : 123,019,321 = 123,019,321 : x
2. Step 2: Convert to fraction form
   79,654,566/123,019,321 = 123,019,321/x
3. Step 3: Cross multiply
   79,654,566x = 123,019,321 × 123,019,321
4. Step 4: Simplify right side
   79,654,566x = 15,133,753,339,301,040
5. Step 5: Solve for x
   x = 15,133,753,339,301,040/79,654,566
6. Step 6: Final answer
   x = 189,992,289.20