Finding the Third Proportional to 71,297 and 153,123

Step by Step Solution

1. Step 1: Write the proportion equation
   71,297 : 153,123 = 153,123 : x
2. Step 2: Convert to fraction form
   71,297/153,123 = 153,123/x
3. Step 3: Cross multiply
   71,297x = 153,123 × 153,123
4. Step 4: Simplify right side
   71,297x = 23,446,653,129
5. Step 5: Solve for x
   x = 23,446,653,129/71,297
6. Step 6: Final answer
   x = 328,858.90