Finding the Third Proportional to 31,731.75 and 73,780.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,731.75 : 73,780.88 = 73,780.88 : x
2. Step 2: Convert to fraction form
   31,731.75/73,780.88 = 73,780.88/x
3. Step 3: Cross multiply
   31,731.75x = 73,780.88 × 73,780.88
4. Step 4: Simplify right side
   31,731.75x = 5,443,617,515.77
5. Step 5: Solve for x
   x = 5,443,617,515.77/31,731.75
6. Step 6: Final answer
   x = 171,551.13