Finding the Third Proportional to 199,131.75 and 429,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,131.75 : 429,961.50 = 429,961.50 : x
2. Step 2: Convert to fraction form
   199,131.75/429,961.50 = 429,961.50/x
3. Step 3: Cross multiply
   199,131.75x = 429,961.50 × 429,961.50
4. Step 4: Simplify right side
   199,131.75x = 184,866,891,482.25
5. Step 5: Solve for x
   x = 184,866,891,482.25/199,131.75
6. Step 6: Final answer
   x = 928,364.72