Finding the Third Proportional to 570,457.50 and 876,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   570,457.50 : 876,910.50 = 876,910.50 : x
2. Step 2: Convert to fraction form
   570,457.50/876,910.50 = 876,910.50/x
3. Step 3: Cross multiply
   570,457.50x = 876,910.50 × 876,910.50
4. Step 4: Simplify right side
   570,457.50x = 768,972,025,010.25
5. Step 5: Solve for x
   x = 768,972,025,010.25/570,457.50
6. Step 6: Final answer
   x = 1,347,991.79