Finding the Third Proportional to 399,697,950 and 925,243,131

Step by Step Solution

1. Step 1: Write the proportion equation
   399,697,950 : 925,243,131 = 925,243,131 : x
2. Step 2: Convert to fraction form
   399,697,950/925,243,131 = 925,243,131/x
3. Step 3: Cross multiply
   399,697,950x = 925,243,131 × 925,243,131
4. Step 4: Simplify right side
   399,697,950x = 856,074,851,462,683,136
5. Step 5: Solve for x
   x = 856,074,851,462,683,136/399,697,950
6. Step 6: Final answer
   x = 2,141,804,458.75