Finding the Third Proportional to 42,067,939.50 and 64,621,505.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,067,939.50 : 64,621,505.25 = 64,621,505.25 : x
2. Step 2: Convert to fraction form
   42,067,939.50/64,621,505.25 = 64,621,505.25/x
3. Step 3: Cross multiply
   42,067,939.50x = 64,621,505.25 × 64,621,505.25
4. Step 4: Simplify right side
   42,067,939.50x = 4,175,938,940,775,777.50
5. Step 5: Solve for x
   x = 4,175,938,940,775,777.50/42,067,939.50
6. Step 6: Final answer
   x = 99,266,543.37