Finding the Third Proportional to 139,543 and 293,908

Step by Step Solution

1. Step 1: Write the proportion equation
   139,543 : 293,908 = 293,908 : x
2. Step 2: Convert to fraction form
   139,543/293,908 = 293,908/x
3. Step 3: Cross multiply
   139,543x = 293,908 × 293,908
4. Step 4: Simplify right side
   139,543x = 86,381,912,464
5. Step 5: Solve for x
   x = 86,381,912,464/139,543
6. Step 6: Final answer
   x = 619,034.37