Finding the Third Proportional to 30,390.19 and 43,785.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,390.19 : 43,785.56 = 43,785.56 : x
2. Step 2: Convert to fraction form
   30,390.19/43,785.56 = 43,785.56/x
3. Step 3: Cross multiply
   30,390.19x = 43,785.56 × 43,785.56
4. Step 4: Simplify right side
   30,390.19x = 1,917,175,483.44
5. Step 5: Solve for x
   x = 1,917,175,483.44/30,390.19
6. Step 6: Final answer
   x = 63,085.35