Finding the Third Proportional to 11,979,055 and 19,558,651.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,979,055 : 19,558,651.25 = 19,558,651.25 : x
2. Step 2: Convert to fraction form
   11,979,055/19,558,651.25 = 19,558,651.25/x
3. Step 3: Cross multiply
   11,979,055x = 19,558,651.25 × 19,558,651.25
4. Step 4: Simplify right side
   11,979,055x = 382,540,838,719,126.56
5. Step 5: Solve for x
   x = 382,540,838,719,126.56/11,979,055
6. Step 6: Final answer
   x = 31,934,141.61