Finding the Third Proportional to 721,848 and 1,009,157.50

Step by Step Solution

1. Step 1: Write the proportion equation
   721,848 : 1,009,157.50 = 1,009,157.50 : x
2. Step 2: Convert to fraction form
   721,848/1,009,157.50 = 1,009,157.50/x
3. Step 3: Cross multiply
   721,848x = 1,009,157.50 × 1,009,157.50
4. Step 4: Simplify right side
   721,848x = 1,018,398,859,806.25
5. Step 5: Solve for x
   x = 1,018,398,859,806.25/721,848
6. Step 6: Final answer
   x = 1,410,821.75