Finding the Third Proportional to 583,562,134.50 and 1,280,659,639.50

Step by Step Solution

1. Step 1: Write the proportion equation
   583,562,134.50 : 1,280,659,639.50 = 1,280,659,639.50 : x
2. Step 2: Convert to fraction form
   583,562,134.50/1,280,659,639.50 = 1,280,659,639.50/x
3. Step 3: Cross multiply
   583,562,134.50x = 1,280,659,639.50 × 1,280,659,639.50
4. Step 4: Simplify right side
   583,562,134.50x = 1,640,089,112,244,270,080
5. Step 5: Solve for x
   x = 1,640,089,112,244,270,080/583,562,134.50
6. Step 6: Final answer
   x = 2,810,478,979.50