Finding the Third Proportional to 31,560.10 and 69,156.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,560.10 : 69,156.28 = 69,156.28 : x
2. Step 2: Convert to fraction form
   31,560.10/69,156.28 = 69,156.28/x
3. Step 3: Cross multiply
   31,560.10x = 69,156.28 × 69,156.28
4. Step 4: Simplify right side
   31,560.10x = 4,782,591,236.33
5. Step 5: Solve for x
   x = 4,782,591,236.33/31,560.10
6. Step 6: Final answer
   x = 151,539.17