Finding the Third Proportional to 191,653.50 and 287,940

Step by Step Solution

1. Step 1: Write the proportion equation
   191,653.50 : 287,940 = 287,940 : x
2. Step 2: Convert to fraction form
   191,653.50/287,940 = 287,940/x
3. Step 3: Cross multiply
   191,653.50x = 287,940 × 287,940
4. Step 4: Simplify right side
   191,653.50x = 82,909,443,600
5. Step 5: Solve for x
   x = 82,909,443,600/191,653.50
6. Step 6: Final answer
   x = 432,600.73