Finding the Third Proportional to 31,467.94 and 66,580.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,467.94 : 66,580.31 = 66,580.31 : x
2. Step 2: Convert to fraction form
   31,467.94/66,580.31 = 66,580.31/x
3. Step 3: Cross multiply
   31,467.94x = 66,580.31 × 66,580.31
4. Step 4: Simplify right side
   31,467.94x = 4,432,938,012.60
5. Step 5: Solve for x
   x = 4,432,938,012.60/31,467.94
6. Step 6: Final answer
   x = 140,871.58