Finding the Third Proportional to 78,897 and 169,822.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,897 : 169,822.50 = 169,822.50 : x
2. Step 2: Convert to fraction form
   78,897/169,822.50 = 169,822.50/x
3. Step 3: Cross multiply
   78,897x = 169,822.50 × 169,822.50
4. Step 4: Simplify right side
   78,897x = 28,839,681,506.25
5. Step 5: Solve for x
   x = 28,839,681,506.25/78,897
6. Step 6: Final answer
   x = 365,535.84