Finding the Third Proportional to 722,111.50 and 1,009,505.50

Step by Step Solution

1. Step 1: Write the proportion equation
   722,111.50 : 1,009,505.50 = 1,009,505.50 : x
2. Step 2: Convert to fraction form
   722,111.50/1,009,505.50 = 1,009,505.50/x
3. Step 3: Cross multiply
   722,111.50x = 1,009,505.50 × 1,009,505.50
4. Step 4: Simplify right side
   722,111.50x = 1,019,101,354,530.25
5. Step 5: Solve for x
   x = 1,019,101,354,530.25/722,111.50
6. Step 6: Final answer
   x = 1,411,279.77