Finding the Third Proportional to 39,620 and 53,962.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,620 : 53,962.50 = 53,962.50 : x
2. Step 2: Convert to fraction form
   39,620/53,962.50 = 53,962.50/x
3. Step 3: Cross multiply
   39,620x = 53,962.50 × 53,962.50
4. Step 4: Simplify right side
   39,620x = 2,911,951,406.25
5. Step 5: Solve for x
   x = 2,911,951,406.25/39,620
6. Step 6: Final answer
   x = 73,497.01