Finding the Third Proportional to 625,810,642.31 and 1,303,122,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   625,810,642.31 : 1,303,122,856.50 = 1,303,122,856.50 : x
2. Step 2: Convert to fraction form
   625,810,642.31/1,303,122,856.50 = 1,303,122,856.50/x
3. Step 3: Cross multiply
   625,810,642.31x = 1,303,122,856.50 × 1,303,122,856.50
4. Step 4: Simplify right side
   625,810,642.31x = 1,698,129,179,132,719,616
5. Step 5: Solve for x
   x = 1,698,129,179,132,719,616/625,810,642.31
6. Step 6: Final answer
   x = 2,713,487,218.53