Finding the Third Proportional to 30,009.38 and 42,886.13

Step by Step Solution

1. Step 1: Write the proportion equation
   30,009.38 : 42,886.13 = 42,886.13 : x
2. Step 2: Convert to fraction form
   30,009.38/42,886.13 = 42,886.13/x
3. Step 3: Cross multiply
   30,009.38x = 42,886.13 × 42,886.13
4. Step 4: Simplify right side
   30,009.38x = 1,839,219,717.52
5. Step 5: Solve for x
   x = 1,839,219,717.52/30,009.38
6. Step 6: Final answer
   x = 61,288.17