Finding the Third Proportional to 30,256.88 and 42,319.13

Step by Step Solution

1. Step 1: Write the proportion equation
   30,256.88 : 42,319.13 = 42,319.13 : x
2. Step 2: Convert to fraction form
   30,256.88/42,319.13 = 42,319.13/x
3. Step 3: Cross multiply
   30,256.88x = 42,319.13 × 42,319.13
4. Step 4: Simplify right side
   30,256.88x = 1,790,908,340.77
5. Step 5: Solve for x
   x = 1,790,908,340.77/30,256.88
6. Step 6: Final answer
   x = 59,190.13