Finding the Third Proportional to 31,560.47 and 69,060.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,560.47 : 69,060.09 = 69,060.09 : x
2. Step 2: Convert to fraction form
   31,560.47/69,060.09 = 69,060.09/x
3. Step 3: Cross multiply
   31,560.47x = 69,060.09 × 69,060.09
4. Step 4: Simplify right side
   31,560.47x = 4,769,296,548.76
5. Step 5: Solve for x
   x = 4,769,296,548.76/31,560.47
6. Step 6: Final answer
   x = 151,116.15