Finding the Third Proportional to 42,055 and 64,397

Step by Step Solution

1. Step 1: Write the proportion equation
   42,055 : 64,397 = 64,397 : x
2. Step 2: Convert to fraction form
   42,055/64,397 = 64,397/x
3. Step 3: Cross multiply
   42,055x = 64,397 × 64,397
4. Step 4: Simplify right side
   42,055x = 4,146,973,609
5. Step 5: Solve for x
   x = 4,146,973,609/42,055
6. Step 6: Final answer
   x = 98,608.34