Finding the Third Proportional to 403,411.50 and 869,064

Step by Step Solution

1. Step 1: Write the proportion equation
   403,411.50 : 869,064 = 869,064 : x
2. Step 2: Convert to fraction form
   403,411.50/869,064 = 869,064/x
3. Step 3: Cross multiply
   403,411.50x = 869,064 × 869,064
4. Step 4: Simplify right side
   403,411.50x = 755,272,236,096
5. Step 5: Solve for x
   x = 755,272,236,096/403,411.50
6. Step 6: Final answer
   x = 1,872,212.95