Finding the Third Proportional to 199,242 and 429,970

Step by Step Solution

1. Step 1: Write the proportion equation
   199,242 : 429,970 = 429,970 : x
2. Step 2: Convert to fraction form
   199,242/429,970 = 429,970/x
3. Step 3: Cross multiply
   199,242x = 429,970 × 429,970
4. Step 4: Simplify right side
   199,242x = 184,874,200,900
5. Step 5: Solve for x
   x = 184,874,200,900/199,242
6. Step 6: Final answer
   x = 927,887.70