Finding the Third Proportional to 31,071.94 and 66,497.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,071.94 : 66,497.63 = 66,497.63 : x
2. Step 2: Convert to fraction form
   31,071.94/66,497.63 = 66,497.63/x
3. Step 3: Cross multiply
   31,071.94x = 66,497.63 × 66,497.63
4. Step 4: Simplify right side
   31,071.94x = 4,421,934,130.64
5. Step 5: Solve for x
   x = 4,421,934,130.64/31,071.94
6. Step 6: Final answer
   x = 142,312.79