Finding the Third Proportional to 726,116 and 1,578,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   726,116 : 1,578,167.50 = 1,578,167.50 : x
2. Step 2: Convert to fraction form
   726,116/1,578,167.50 = 1,578,167.50/x
3. Step 3: Cross multiply
   726,116x = 1,578,167.50 × 1,578,167.50
4. Step 4: Simplify right side
   726,116x = 2,490,612,658,056.25
5. Step 5: Solve for x
   x = 2,490,612,658,056.25/726,116
6. Step 6: Final answer
   x = 3,430,047.90