Finding the Third Proportional to 578,610 and 894,123

Step by Step Solution

1. Step 1: Write the proportion equation
   578,610 : 894,123 = 894,123 : x
2. Step 2: Convert to fraction form
   578,610/894,123 = 894,123/x
3. Step 3: Cross multiply
   578,610x = 894,123 × 894,123
4. Step 4: Simplify right side
   578,610x = 799,455,939,129
5. Step 5: Solve for x
   x = 799,455,939,129/578,610
6. Step 6: Final answer
   x = 1,381,683.59