Finding the Third Proportional to 985,140,308 and 2,141,754,538

Step by Step Solution

1. Step 1: Write the proportion equation
   985,140,308 : 2,141,754,538 = 2,141,754,538 : x
2. Step 2: Convert to fraction form
   985,140,308/2,141,754,538 = 2,141,754,538/x
3. Step 3: Cross multiply
   985,140,308x = 2,141,754,538 × 2,141,754,538
4. Step 4: Simplify right side
   985,140,308x = 4,587,112,501,043,593,216
5. Step 5: Solve for x
   x = 4,587,112,501,043,593,216/985,140,308
6. Step 6: Final answer
   x = 4,656,303,740.49