Finding the Third Proportional to 53,148.56 and 82,290.19

Step by Step Solution

1. Step 1: Write the proportion equation
   53,148.56 : 82,290.19 = 82,290.19 : x
2. Step 2: Convert to fraction form
   53,148.56/82,290.19 = 82,290.19/x
3. Step 3: Cross multiply
   53,148.56x = 82,290.19 × 82,290.19
4. Step 4: Simplify right side
   53,148.56x = 6,771,674,958.79
5. Step 5: Solve for x
   x = 6,771,674,958.79/53,148.56
6. Step 6: Final answer
   x = 127,410.31