Finding the Third Proportional to 51,620 and 72,693

Step by Step Solution

1. Step 1: Write the proportion equation
   51,620 : 72,693 = 72,693 : x
2. Step 2: Convert to fraction form
   51,620/72,693 = 72,693/x
3. Step 3: Cross multiply
   51,620x = 72,693 × 72,693
4. Step 4: Simplify right side
   51,620x = 5,284,272,249
5. Step 5: Solve for x
   x = 5,284,272,249/51,620
6. Step 6: Final answer
   x = 102,368.70