Finding the Third Proportional to 78,637.50 and 169,762.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,637.50 : 169,762.50 = 169,762.50 : x
2. Step 2: Convert to fraction form
   78,637.50/169,762.50 = 169,762.50/x
3. Step 3: Cross multiply
   78,637.50x = 169,762.50 × 169,762.50
4. Step 4: Simplify right side
   78,637.50x = 28,819,306,406.25
5. Step 5: Solve for x
   x = 28,819,306,406.25/78,637.50
6. Step 6: Final answer
   x = 366,482.99