Finding the Third Proportional to 42,067,935.98 and 64,621,498.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,067,935.98 : 64,621,498.78 = 64,621,498.78 : x
2. Step 2: Convert to fraction form
   42,067,935.98/64,621,498.78 = 64,621,498.78/x
3. Step 3: Cross multiply
   42,067,935.98x = 64,621,498.78 × 64,621,498.78
4. Step 4: Simplify right side
   42,067,935.98x = 4,175,938,104,735,095
5. Step 5: Solve for x
   x = 4,175,938,104,735,095/42,067,935.98
6. Step 6: Final answer
   x = 99,266,531.79