Finding the Third Proportional to 199,831.50 and 429,310

Step by Step Solution

1. Step 1: Write the proportion equation
   199,831.50 : 429,310 = 429,310 : x
2. Step 2: Convert to fraction form
   199,831.50/429,310 = 429,310/x
3. Step 3: Cross multiply
   199,831.50x = 429,310 × 429,310
4. Step 4: Simplify right side
   199,831.50x = 184,307,076,100
5. Step 5: Solve for x
   x = 184,307,076,100/199,831.50
6. Step 6: Final answer
   x = 922,312.43