Finding the Third Proportional to 82,621.50 and 111,475.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82,621.50 : 111,475.69 = 111,475.69 : x
2. Step 2: Convert to fraction form
   82,621.50/111,475.69 = 111,475.69/x
3. Step 3: Cross multiply
   82,621.50x = 111,475.69 × 111,475.69
4. Step 4: Simplify right side
   82,621.50x = 12,426,828,903.60
5. Step 5: Solve for x
   x = 12,426,828,903.60/82,621.50
6. Step 6: Final answer
   x = 150,406.72