Finding the Third Proportional to 429,144 and 630,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   429,144 : 630,577.50 = 630,577.50 : x
2. Step 2: Convert to fraction form
   429,144/630,577.50 = 630,577.50/x
3. Step 3: Cross multiply
   429,144x = 630,577.50 × 630,577.50
4. Step 4: Simplify right side
   429,144x = 397,627,983,506.25
5. Step 5: Solve for x
   x = 397,627,983,506.25/429,144
6. Step 6: Final answer
   x = 926,560.74