Finding the Third Proportional to 49,316 and 80,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,316 : 80,121.50 = 80,121.50 : x
2. Step 2: Convert to fraction form
   49,316/80,121.50 = 80,121.50/x
3. Step 3: Cross multiply
   49,316x = 80,121.50 × 80,121.50
4. Step 4: Simplify right side
   49,316x = 6,419,454,762.25
5. Step 5: Solve for x
   x = 6,419,454,762.25/49,316
6. Step 6: Final answer
   x = 130,169.82