Finding the Third Proportional to 286,153.50 and 442,882

Step by Step Solution

1. Step 1: Write the proportion equation
   286,153.50 : 442,882 = 442,882 : x
2. Step 2: Convert to fraction form
   286,153.50/442,882 = 442,882/x
3. Step 3: Cross multiply
   286,153.50x = 442,882 × 442,882
4. Step 4: Simplify right side
   286,153.50x = 196,144,465,924
5. Step 5: Solve for x
   x = 196,144,465,924/286,153.50
6. Step 6: Final answer
   x = 685,451.92