Finding the Third Proportional to 190,761.50 and 402,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,761.50 : 402,784.50 = 402,784.50 : x
2. Step 2: Convert to fraction form
   190,761.50/402,784.50 = 402,784.50/x
3. Step 3: Cross multiply
   190,761.50x = 402,784.50 × 402,784.50
4. Step 4: Simplify right side
   190,761.50x = 162,235,353,440.25
5. Step 5: Solve for x
   x = 162,235,353,440.25/190,761.50
6. Step 6: Final answer
   x = 850,461.72