Finding the Third Proportional to 168,048 and 260,212.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,048 : 260,212.50 = 260,212.50 : x
2. Step 2: Convert to fraction form
   168,048/260,212.50 = 260,212.50/x
3. Step 3: Cross multiply
   168,048x = 260,212.50 × 260,212.50
4. Step 4: Simplify right side
   168,048x = 67,710,545,156.25
5. Step 5: Solve for x
   x = 67,710,545,156.25/168,048
6. Step 6: Final answer
   x = 402,923.84