Finding the Third Proportional to 199,770.50 and 429,185

Step by Step Solution

1. Step 1: Write the proportion equation
   199,770.50 : 429,185 = 429,185 : x
2. Step 2: Convert to fraction form
   199,770.50/429,185 = 429,185/x
3. Step 3: Cross multiply
   199,770.50x = 429,185 × 429,185
4. Step 4: Simplify right side
   199,770.50x = 184,199,764,225
5. Step 5: Solve for x
   x = 184,199,764,225/199,770.50
6. Step 6: Final answer
   x = 922,056.88