Finding the Third Proportional to 42,067,894 and 64,621,437

Step by Step Solution

1. Step 1: Write the proportion equation
   42,067,894 : 64,621,437 = 64,621,437 : x
2. Step 2: Convert to fraction form
   42,067,894/64,621,437 = 64,621,437/x
3. Step 3: Cross multiply
   42,067,894x = 64,621,437 × 64,621,437
4. Step 4: Simplify right side
   42,067,894x = 4,175,930,119,944,969
5. Step 5: Solve for x
   x = 4,175,930,119,944,969/42,067,894
6. Step 6: Final answer
   x = 99,266,441.05