Finding the Third Proportional to 7,886,731,354 and 12,250,997,635.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,886,731,354 : 12,250,997,635.50 = 12,250,997,635.50 : x
2. Step 2: Convert to fraction form
   7,886,731,354/12,250,997,635.50 = 12,250,997,635.50/x
3. Step 3: Cross multiply
   7,886,731,354x = 12,250,997,635.50 × 12,250,997,635.50
4. Step 4: Simplify right side
   7,886,731,354x = 150,086,943,065,026,592,768
5. Step 5: Solve for x
   x = 150,086,943,065,026,592,768/7,886,731,354
6. Step 6: Final answer
   x = 19,030,310,064.88