Finding the Third Proportional to 17,315 and 27,123

Step by Step Solution

1. Step 1: Write the proportion equation
   17,315 : 27,123 = 27,123 : x
2. Step 2: Convert to fraction form
   17,315/27,123 = 27,123/x
3. Step 3: Cross multiply
   17,315x = 27,123 × 27,123
4. Step 4: Simplify right side
   17,315x = 735,657,129
5. Step 5: Solve for x
   x = 735,657,129/17,315
6. Step 6: Final answer
   x = 42,486.70