Finding the Third Proportional to 199,766.50 and 429,178

Step by Step Solution

1. Step 1: Write the proportion equation
   199,766.50 : 429,178 = 429,178 : x
2. Step 2: Convert to fraction form
   199,766.50/429,178 = 429,178/x
3. Step 3: Cross multiply
   199,766.50x = 429,178 × 429,178
4. Step 4: Simplify right side
   199,766.50x = 184,193,755,684
5. Step 5: Solve for x
   x = 184,193,755,684/199,766.50
6. Step 6: Final answer
   x = 922,045.27