Finding the Third Proportional to 5,821,695,691.31 and 12,663,412,688.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,821,695,691.31 : 12,663,412,688.25 = 12,663,412,688.25 : x
2. Step 2: Convert to fraction form
   5,821,695,691.31/12,663,412,688.25 = 12,663,412,688.25/x
3. Step 3: Cross multiply
   5,821,695,691.31x = 12,663,412,688.25 × 12,663,412,688.25
4. Step 4: Simplify right side
   5,821,695,691.31x = 160,362,020,912,931,078,144
5. Step 5: Solve for x
   x = 160,362,020,912,931,078,144/5,821,695,691.31
6. Step 6: Final answer
   x = 27,545,586,271.75