Finding the Third Proportional to 399,697,944 and 925,243,116

Step by Step Solution

1. Step 1: Write the proportion equation
   399,697,944 : 925,243,116 = 925,243,116 : x
2. Step 2: Convert to fraction form
   399,697,944/925,243,116 = 925,243,116/x
3. Step 3: Cross multiply
   399,697,944x = 925,243,116 × 925,243,116
4. Step 4: Simplify right side
   399,697,944x = 856,074,823,705,389,440
5. Step 5: Solve for x
   x = 856,074,823,705,389,440/399,697,944
6. Step 6: Final answer
   x = 2,141,804,421.45