Finding the Third Proportional to 79,654,782 and 123,019,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,654,782 : 123,019,672.50 = 123,019,672.50 : x
2. Step 2: Convert to fraction form
   79,654,782/123,019,672.50 = 123,019,672.50/x
3. Step 3: Cross multiply
   79,654,782x = 123,019,672.50 × 123,019,672.50
4. Step 4: Simplify right side
   79,654,782x = 15,133,839,822,007,256
5. Step 5: Solve for x
   x = 15,133,839,822,007,256/79,654,782
6. Step 6: Final answer
   x = 189,992,859.71