Finding the Third Proportional to 190,540.50 and 402,465

Step by Step Solution

1. Step 1: Write the proportion equation
   190,540.50 : 402,465 = 402,465 : x
2. Step 2: Convert to fraction form
   190,540.50/402,465 = 402,465/x
3. Step 3: Cross multiply
   190,540.50x = 402,465 × 402,465
4. Step 4: Simplify right side
   190,540.50x = 161,978,076,225
5. Step 5: Solve for x
   x = 161,978,076,225/190,540.50
6. Step 6: Final answer
   x = 850,097.89