Finding the Third Proportional to 9,079,907,481 and 12,780,938,776.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,079,907,481 : 12,780,938,776.50 = 12,780,938,776.50 : x
2. Step 2: Convert to fraction form
   9,079,907,481/12,780,938,776.50 = 12,780,938,776.50/x
3. Step 3: Cross multiply
   9,079,907,481x = 12,780,938,776.50 × 12,780,938,776.50
4. Step 4: Simplify right side
   9,079,907,481x = 163,352,396,008,641,331,200
5. Step 5: Solve for x
   x = 163,352,396,008,641,331,200/9,079,907,481
6. Step 6: Final answer
   x = 17,990,535,294.60