Finding the Third Proportional to 31,073.63 and 66,298.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,073.63 : 66,298.50 = 66,298.50 : x
2. Step 2: Convert to fraction form
   31,073.63/66,298.50 = 66,298.50/x
3. Step 3: Cross multiply
   31,073.63x = 66,298.50 × 66,298.50
4. Step 4: Simplify right side
   31,073.63x = 4,395,491,102.25
5. Step 5: Solve for x
   x = 4,395,491,102.25/31,073.63
6. Step 6: Final answer
   x = 141,454.08