Finding the Third Proportional to 30,832.31 and 66,038.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,832.31 : 66,038.63 = 66,038.63 : x
2. Step 2: Convert to fraction form
   30,832.31/66,038.63 = 66,038.63/x
3. Step 3: Cross multiply
   30,832.31x = 66,038.63 × 66,038.63
4. Step 4: Simplify right side
   30,832.31x = 4,361,099,991.89
5. Step 5: Solve for x
   x = 4,361,099,991.89/30,832.31
6. Step 6: Final answer
   x = 141,445.76