Finding the Third Proportional to 19,778,646 and 42,754,957

Step by Step Solution

1. Step 1: Write the proportion equation
   19,778,646 : 42,754,957 = 42,754,957 : x
2. Step 2: Convert to fraction form
   19,778,646/42,754,957 = 42,754,957/x
3. Step 3: Cross multiply
   19,778,646x = 42,754,957 × 42,754,957
4. Step 4: Simplify right side
   19,778,646x = 1,827,986,348,071,849
5. Step 5: Solve for x
   x = 1,827,986,348,071,849/19,778,646
6. Step 6: Final answer
   x = 92,422,218.79