Finding the Third Proportional to 726,119 and 1,578,174

Step by Step Solution

1. Step 1: Write the proportion equation
   726,119 : 1,578,174 = 1,578,174 : x
2. Step 2: Convert to fraction form
   726,119/1,578,174 = 1,578,174/x
3. Step 3: Cross multiply
   726,119x = 1,578,174 × 1,578,174
4. Step 4: Simplify right side
   726,119x = 2,490,633,174,276
5. Step 5: Solve for x
   x = 2,490,633,174,276/726,119
6. Step 6: Final answer
   x = 3,430,061.98