Finding the Third Proportional to 262,899 and 429,250.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,899 : 429,250.50 = 429,250.50 : x
2. Step 2: Convert to fraction form
   262,899/429,250.50 = 429,250.50/x
3. Step 3: Cross multiply
   262,899x = 429,250.50 × 429,250.50
4. Step 4: Simplify right side
   262,899x = 184,255,991,750.25
5. Step 5: Solve for x
   x = 184,255,991,750.25/262,899
6. Step 6: Final answer
   x = 700,862.28