Finding the Third Proportional to 40,430.13 and 57,892.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,430.13 : 57,892.88 = 57,892.88 : x
2. Step 2: Convert to fraction form
   40,430.13/57,892.88 = 57,892.88/x
3. Step 3: Cross multiply
   40,430.13x = 57,892.88 × 57,892.88
4. Step 4: Simplify right side
   40,430.13x = 3,351,584,975.77
5. Step 5: Solve for x
   x = 3,351,584,975.77/40,430.13
6. Step 6: Final answer
   x = 82,898.21