Finding the Third Proportional to 57,390.75 and 84,196.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,390.75 : 84,196.13 = 84,196.13 : x
2. Step 2: Convert to fraction form
   57,390.75/84,196.13 = 84,196.13/x
3. Step 3: Cross multiply
   57,390.75x = 84,196.13 × 84,196.13
4. Step 4: Simplify right side
   57,390.75x = 7,088,987,465.02
5. Step 5: Solve for x
   x = 7,088,987,465.02/57,390.75
6. Step 6: Final answer
   x = 123,521.43