Finding the Third Proportional to 403,122 and 609,898.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,122 : 609,898.50 = 609,898.50 : x
2. Step 2: Convert to fraction form
   403,122/609,898.50 = 609,898.50/x
3. Step 3: Cross multiply
   403,122x = 609,898.50 × 609,898.50
4. Step 4: Simplify right side
   403,122x = 371,976,180,302.25
5. Step 5: Solve for x
   x = 371,976,180,302.25/403,122
6. Step 6: Final answer
   x = 922,738.48