Finding the Third Proportional to 30,405.38 and 45,486.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,405.38 : 45,486.56 = 45,486.56 : x
2. Step 2: Convert to fraction form
   30,405.38/45,486.56 = 45,486.56/x
3. Step 3: Cross multiply
   30,405.38x = 45,486.56 × 45,486.56
4. Step 4: Simplify right side
   30,405.38x = 2,069,027,368.07
5. Step 5: Solve for x
   x = 2,069,027,368.07/30,405.38
6. Step 6: Final answer
   x = 68,048.08