Finding the Third Proportional to 9,079,907,341.50 and 12,780,938,570.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,079,907,341.50 : 12,780,938,570.91 = 12,780,938,570.91 : x
2. Step 2: Convert to fraction form
   9,079,907,341.50/12,780,938,570.91 = 12,780,938,570.91/x
3. Step 3: Cross multiply
   9,079,907,341.50x = 12,780,938,570.91 × 12,780,938,570.91
4. Step 4: Simplify right side
   9,079,907,341.50x = 163,352,390,753,272,692,736
5. Step 5: Solve for x
   x = 163,352,390,753,272,692,736/9,079,907,341.50
6. Step 6: Final answer
   x = 17,990,534,992.21