Finding the Third Proportional to 151,557 and 252,583.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,557 : 252,583.50 = 252,583.50 : x
2. Step 2: Convert to fraction form
   151,557/252,583.50 = 252,583.50/x
3. Step 3: Cross multiply
   151,557x = 252,583.50 × 252,583.50
4. Step 4: Simplify right side
   151,557x = 63,798,424,472.25
5. Step 5: Solve for x
   x = 63,798,424,472.25/151,557
6. Step 6: Final answer
   x = 420,953.33