Finding the Third Proportional to 78,104.50 and 168,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,104.50 : 168,075.50 = 168,075.50 : x
2. Step 2: Convert to fraction form
   78,104.50/168,075.50 = 168,075.50/x
3. Step 3: Cross multiply
   78,104.50x = 168,075.50 × 168,075.50
4. Step 4: Simplify right side
   78,104.50x = 28,249,373,700.25
5. Step 5: Solve for x
   x = 28,249,373,700.25/78,104.50
6. Step 6: Final answer
   x = 361,686.89