Finding the Third Proportional to 11,979,100 and 19,558,719

Step by Step Solution

1. Step 1: Write the proportion equation
   11,979,100 : 19,558,719 = 19,558,719 : x
2. Step 2: Convert to fraction form
   11,979,100/19,558,719 = 19,558,719/x
3. Step 3: Cross multiply
   11,979,100x = 19,558,719 × 19,558,719
4. Step 4: Simplify right side
   11,979,100x = 382,543,488,920,961
5. Step 5: Solve for x
   x = 382,543,488,920,961/11,979,100
6. Step 6: Final answer
   x = 31,934,242.88