Finding the Third Proportional to 30,502.78 and 62,492.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,502.78 : 62,492.02 = 62,492.02 : x
2. Step 2: Convert to fraction form
   30,502.78/62,492.02 = 62,492.02/x
3. Step 3: Cross multiply
   30,502.78x = 62,492.02 × 62,492.02
4. Step 4: Simplify right side
   30,502.78x = 3,905,252,016.88
5. Step 5: Solve for x
   x = 3,905,252,016.88/30,502.78
6. Step 6: Final answer
   x = 128,029.37