Finding the Third Proportional to 30,699 and 40,748.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,699 : 40,748.06 = 40,748.06 : x
2. Step 2: Convert to fraction form
   30,699/40,748.06 = 40,748.06/x
3. Step 3: Cross multiply
   30,699x = 40,748.06 × 40,748.06
4. Step 4: Simplify right side
   30,699x = 1,660,404,597.50
5. Step 5: Solve for x
   x = 1,660,404,597.50/30,699
6. Step 6: Final answer
   x = 54,086.60