Finding the Third Proportional to 216,525,936 and 510,962,456

Step by Step Solution

1. Step 1: Write the proportion equation
   216,525,936 : 510,962,456 = 510,962,456 : x
2. Step 2: Convert to fraction form
   216,525,936/510,962,456 = 510,962,456/x
3. Step 3: Cross multiply
   216,525,936x = 510,962,456 × 510,962,456
4. Step 4: Simplify right side
   216,525,936x = 261,082,631,441,551,936
5. Step 5: Solve for x
   x = 261,082,631,441,551,936/216,525,936
6. Step 6: Final answer
   x = 1,205,779,946.11