Finding the Third Proportional to 77,885.25 and 170,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,885.25 : 170,185.50 = 170,185.50 : x
2. Step 2: Convert to fraction form
   77,885.25/170,185.50 = 170,185.50/x
3. Step 3: Cross multiply
   77,885.25x = 170,185.50 × 170,185.50
4. Step 4: Simplify right side
   77,885.25x = 28,963,104,410.25
5. Step 5: Solve for x
   x = 28,963,104,410.25/77,885.25
6. Step 6: Final answer
   x = 371,868.93