Finding the Third Proportional to 19,942,042 and 43,378,123

Step by Step Solution

1. Step 1: Write the proportion equation
   19,942,042 : 43,378,123 = 43,378,123 : x
2. Step 2: Convert to fraction form
   19,942,042/43,378,123 = 43,378,123/x
3. Step 3: Cross multiply
   19,942,042x = 43,378,123 × 43,378,123
4. Step 4: Simplify right side
   19,942,042x = 1,881,661,555,003,129
5. Step 5: Solve for x
   x = 1,881,661,555,003,129/19,942,042
6. Step 6: Final answer
   x = 94,356,513.49