Finding the Third Proportional to 19,841,268 and 42,516,864

Step by Step Solution

1. Step 1: Write the proportion equation
   19,841,268 : 42,516,864 = 42,516,864 : x
2. Step 2: Convert to fraction form
   19,841,268/42,516,864 = 42,516,864/x
3. Step 3: Cross multiply
   19,841,268x = 42,516,864 × 42,516,864
4. Step 4: Simplify right side
   19,841,268x = 1,807,683,724,394,496
5. Step 5: Solve for x
   x = 1,807,683,724,394,496/19,841,268
6. Step 6: Final answer
   x = 91,107,268.16