Finding the Third Proportional to 55,481.63 and 78,505.03

Step by Step Solution

1. Step 1: Write the proportion equation
   55,481.63 : 78,505.03 = 78,505.03 : x
2. Step 2: Convert to fraction form
   55,481.63/78,505.03 = 78,505.03/x
3. Step 3: Cross multiply
   55,481.63x = 78,505.03 × 78,505.03
4. Step 4: Simplify right side
   55,481.63x = 6,163,039,931.56
5. Step 5: Solve for x
   x = 6,163,039,931.56/55,481.63
6. Step 6: Final answer
   x = 111,082.54