Finding the Third Proportional to 17,679 and 37,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,679 : 37,402.50 = 37,402.50 : x
2. Step 2: Convert to fraction form
   17,679/37,402.50 = 37,402.50/x
3. Step 3: Cross multiply
   17,679x = 37,402.50 × 37,402.50
4. Step 4: Simplify right side
   17,679x = 1,398,947,006.25
5. Step 5: Solve for x
   x = 1,398,947,006.25/17,679
6. Step 6: Final answer
   x = 79,130.44