Finding the Third Proportional to 31,230 and 45,143

Step by Step Solution

1. Step 1: Write the proportion equation
   31,230 : 45,143 = 45,143 : x
2. Step 2: Convert to fraction form
   31,230/45,143 = 45,143/x
3. Step 3: Cross multiply
   31,230x = 45,143 × 45,143
4. Step 4: Simplify right side
   31,230x = 2,037,890,449
5. Step 5: Solve for x
   x = 2,037,890,449/31,230
6. Step 6: Final answer
   x = 65,254.26