Finding the Third Proportional to 78,465.50 and 171,146

Step by Step Solution

1. Step 1: Write the proportion equation
   78,465.50 : 171,146 = 171,146 : x
2. Step 2: Convert to fraction form
   78,465.50/171,146 = 171,146/x
3. Step 3: Cross multiply
   78,465.50x = 171,146 × 171,146
4. Step 4: Simplify right side
   78,465.50x = 29,290,953,316
5. Step 5: Solve for x
   x = 29,290,953,316/78,465.50
6. Step 6: Final answer
   x = 373,297.22