Finding the Third Proportional to 787,172.50 and 1,630,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   787,172.50 : 1,630,356.50 = 1,630,356.50 : x
2. Step 2: Convert to fraction form
   787,172.50/1,630,356.50 = 1,630,356.50/x
3. Step 3: Cross multiply
   787,172.50x = 1,630,356.50 × 1,630,356.50
4. Step 4: Simplify right side
   787,172.50x = 2,658,062,317,092.25
5. Step 5: Solve for x
   x = 2,658,062,317,092.25/787,172.50
6. Step 6: Final answer
   x = 3,376,721.52