Finding the Third Proportional to 276,720 and 607,597.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,720 : 607,597.50 = 607,597.50 : x
2. Step 2: Convert to fraction form
   276,720/607,597.50 = 607,597.50/x
3. Step 3: Cross multiply
   276,720x = 607,597.50 × 607,597.50
4. Step 4: Simplify right side
   276,720x = 369,174,722,006.25
5. Step 5: Solve for x
   x = 369,174,722,006.25/276,720
6. Step 6: Final answer
   x = 1,334,109.29