Finding the Third Proportional to 19,705,939 and 42,324,759

Step by Step Solution

1. Step 1: Write the proportion equation
   19,705,939 : 42,324,759 = 42,324,759 : x
2. Step 2: Convert to fraction form
   19,705,939/42,324,759 = 42,324,759/x
3. Step 3: Cross multiply
   19,705,939x = 42,324,759 × 42,324,759
4. Step 4: Simplify right side
   19,705,939x = 1,791,385,224,408,081
5. Step 5: Solve for x
   x = 1,791,385,224,408,081/19,705,939
6. Step 6: Final answer
   x = 90,905,854.55