Finding the Third Proportional to 414,458 and 623,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   414,458 : 623,225.50 = 623,225.50 : x
2. Step 2: Convert to fraction form
   414,458/623,225.50 = 623,225.50/x
3. Step 3: Cross multiply
   414,458x = 623,225.50 × 623,225.50
4. Step 4: Simplify right side
   414,458x = 388,410,023,850.25
5. Step 5: Solve for x
   x = 388,410,023,850.25/414,458
6. Step 6: Final answer
   x = 937,151.71