Finding the Third Proportional to 2,150,991,333.50 and 4,628,868,806.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150,991,333.50 : 4,628,868,806.50 = 4,628,868,806.50 : x
2. Step 2: Convert to fraction form
   2,150,991,333.50/4,628,868,806.50 = 4,628,868,806.50/x
3. Step 3: Cross multiply
   2,150,991,333.50x = 4,628,868,806.50 × 4,628,868,806.50
4. Step 4: Simplify right side
   2,150,991,333.50x = 21,426,426,427,788,734,464
5. Step 5: Solve for x
   x = 21,426,426,427,788,734,464/2,150,991,333.50
6. Step 6: Final answer
   x = 9,961,186,776.58