Finding the Third Proportional to 31,278 and 45,822.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,278 : 45,822.75 = 45,822.75 : x
2. Step 2: Convert to fraction form
   31,278/45,822.75 = 45,822.75/x
3. Step 3: Cross multiply
   31,278x = 45,822.75 × 45,822.75
4. Step 4: Simplify right side
   31,278x = 2,099,724,417.56
5. Step 5: Solve for x
   x = 2,099,724,417.56/31,278
6. Step 6: Final answer
   x = 67,131.03