Finding the Third Proportional to 7,309,025,931 and 10,830,806,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,309,025,931 : 10,830,806,209.50 = 10,830,806,209.50 : x
2. Step 2: Convert to fraction form
   7,309,025,931/10,830,806,209.50 = 10,830,806,209.50/x
3. Step 3: Cross multiply
   7,309,025,931x = 10,830,806,209.50 × 10,830,806,209.50
4. Step 4: Simplify right side
   7,309,025,931x = 117,306,363,147,743,756,288
5. Step 5: Solve for x
   x = 117,306,363,147,743,756,288/7,309,025,931
6. Step 6: Final answer
   x = 16,049,520,723.44