Finding the Third Proportional to 33,020.63 and 64,386.75

Step by Step Solution

1. Step 1: Write the proportion equation
   33,020.63 : 64,386.75 = 64,386.75 : x
2. Step 2: Convert to fraction form
   33,020.63/64,386.75 = 64,386.75/x
3. Step 3: Cross multiply
   33,020.63x = 64,386.75 × 64,386.75
4. Step 4: Simplify right side
   33,020.63x = 4,145,653,575.56
5. Step 5: Solve for x
   x = 4,145,653,575.56/33,020.63
6. Step 6: Final answer
   x = 125,547.40