Finding the Third Proportional to 42,067,944 and 64,621,512.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,067,944 : 64,621,512.75 = 64,621,512.75 : x
2. Step 2: Convert to fraction form
   42,067,944/64,621,512.75 = 64,621,512.75/x
3. Step 3: Cross multiply
   42,067,944x = 64,621,512.75 × 64,621,512.75
4. Step 4: Simplify right side
   42,067,944x = 4,175,939,910,098,412.50
5. Step 5: Solve for x
   x = 4,175,939,910,098,412.50/42,067,944
6. Step 6: Final answer
   x = 99,266,555.79