Finding the Third Proportional to 59,490 and 79,309.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,490 : 79,309.50 = 79,309.50 : x
2. Step 2: Convert to fraction form
   59,490/79,309.50 = 79,309.50/x
3. Step 3: Cross multiply
   59,490x = 79,309.50 × 79,309.50
4. Step 4: Simplify right side
   59,490x = 6,289,996,790.25
5. Step 5: Solve for x
   x = 6,289,996,790.25/59,490
6. Step 6: Final answer
   x = 105,732.00