Finding the Third Proportional to 131,100.50 and 287,473

Step by Step Solution

1. Step 1: Write the proportion equation
   131,100.50 : 287,473 = 287,473 : x
2. Step 2: Convert to fraction form
   131,100.50/287,473 = 287,473/x
3. Step 3: Cross multiply
   131,100.50x = 287,473 × 287,473
4. Step 4: Simplify right side
   131,100.50x = 82,640,725,729
5. Step 5: Solve for x
   x = 82,640,725,729/131,100.50
6. Step 6: Final answer
   x = 630,361.64