Finding the Third Proportional to 19,494,243 and 42,242,742

Step by Step Solution

1. Step 1: Write the proportion equation
   19,494,243 : 42,242,742 = 42,242,742 : x
2. Step 2: Convert to fraction form
   19,494,243/42,242,742 = 42,242,742/x
3. Step 3: Cross multiply
   19,494,243x = 42,242,742 × 42,242,742
4. Step 4: Simplify right side
   19,494,243x = 1,784,449,251,678,564
5. Step 5: Solve for x
   x = 1,784,449,251,678,564/19,494,243
6. Step 6: Final answer
   x = 91,537,242.65