Finding the Third Proportional to 428,875.50 and 630,837

Step by Step Solution

1. Step 1: Write the proportion equation
   428,875.50 : 630,837 = 630,837 : x
2. Step 2: Convert to fraction form
   428,875.50/630,837 = 630,837/x
3. Step 3: Cross multiply
   428,875.50x = 630,837 × 630,837
4. Step 4: Simplify right side
   428,875.50x = 397,955,320,569
5. Step 5: Solve for x
   x = 397,955,320,569/428,875.50
6. Step 6: Final answer
   x = 927,904.07