Finding the Third Proportional to 143,460 and 293,254

Step by Step Solution

1. Step 1: Write the proportion equation
   143,460 : 293,254 = 293,254 : x
2. Step 2: Convert to fraction form
   143,460/293,254 = 293,254/x
3. Step 3: Cross multiply
   143,460x = 293,254 × 293,254
4. Step 4: Simplify right side
   143,460x = 85,997,908,516
5. Step 5: Solve for x
   x = 85,997,908,516/143,460
6. Step 6: Final answer
   x = 599,455.66