Finding the Third Proportional to 264,493.50 and 402,276

Step by Step Solution

1. Step 1: Write the proportion equation
   264,493.50 : 402,276 = 402,276 : x
2. Step 2: Convert to fraction form
   264,493.50/402,276 = 402,276/x
3. Step 3: Cross multiply
   264,493.50x = 402,276 × 402,276
4. Step 4: Simplify right side
   264,493.50x = 161,825,980,176
5. Step 5: Solve for x
   x = 161,825,980,176/264,493.50
6. Step 6: Final answer
   x = 611,833.49