Finding the Third Proportional to 157,123 and 339,146

Step by Step Solution

1. Step 1: Write the proportion equation
   157,123 : 339,146 = 339,146 : x
2. Step 2: Convert to fraction form
   157,123/339,146 = 339,146/x
3. Step 3: Cross multiply
   157,123x = 339,146 × 339,146
4. Step 4: Simplify right side
   157,123x = 115,020,009,316
5. Step 5: Solve for x
   x = 115,020,009,316/157,123
6. Step 6: Final answer
   x = 732,038.02