Finding the Third Proportional to 42,609 and 62,599.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,609 : 62,599.50 = 62,599.50 : x
2. Step 2: Convert to fraction form
   42,609/62,599.50 = 62,599.50/x
3. Step 3: Cross multiply
   42,609x = 62,599.50 × 62,599.50
4. Step 4: Simplify right side
   42,609x = 3,918,697,400.25
5. Step 5: Solve for x
   x = 3,918,697,400.25/42,609
6. Step 6: Final answer
   x = 91,968.77