Finding the Third Proportional to 145,830.38 and 238,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,830.38 : 238,126.50 = 238,126.50 : x
2. Step 2: Convert to fraction form
   145,830.38/238,126.50 = 238,126.50/x
3. Step 3: Cross multiply
   145,830.38x = 238,126.50 × 238,126.50
4. Step 4: Simplify right side
   145,830.38x = 56,704,230,002.25
5. Step 5: Solve for x
   x = 56,704,230,002.25/145,830.38
6. Step 6: Final answer
   x = 388,836.89