Finding the Third Proportional to 34,146 and 72,342

Step by Step Solution

1. Step 1: Write the proportion equation
   34,146 : 72,342 = 72,342 : x
2. Step 2: Convert to fraction form
   34,146/72,342 = 72,342/x
3. Step 3: Cross multiply
   34,146x = 72,342 × 72,342
4. Step 4: Simplify right side
   34,146x = 5,233,364,964
5. Step 5: Solve for x
   x = 5,233,364,964/34,146
6. Step 6: Final answer
   x = 153,264.36