Finding the Third Proportional to 42,898 and 64,619

Step by Step Solution

1. Step 1: Write the proportion equation
   42,898 : 64,619 = 64,619 : x
2. Step 2: Convert to fraction form
   42,898/64,619 = 64,619/x
3. Step 3: Cross multiply
   42,898x = 64,619 × 64,619
4. Step 4: Simplify right side
   42,898x = 4,175,615,161
5. Step 5: Solve for x
   x = 4,175,615,161/42,898
6. Step 6: Final answer
   x = 97,338.22