Finding the Third Proportional to 51,740 and 79,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,740 : 79,901.50 = 79,901.50 : x
2. Step 2: Convert to fraction form
   51,740/79,901.50 = 79,901.50/x
3. Step 3: Cross multiply
   51,740x = 79,901.50 × 79,901.50
4. Step 4: Simplify right side
   51,740x = 6,384,249,702.25
5. Step 5: Solve for x
   x = 6,384,249,702.25/51,740
6. Step 6: Final answer
   x = 123,390.99