Finding the Third Proportional to 99,320,435 and 213,820,052

Step by Step Solution

1. Step 1: Write the proportion equation
   99,320,435 : 213,820,052 = 213,820,052 : x
2. Step 2: Convert to fraction form
   99,320,435/213,820,052 = 213,820,052/x
3. Step 3: Cross multiply
   99,320,435x = 213,820,052 × 213,820,052
4. Step 4: Simplify right side
   99,320,435x = 45,719,014,637,282,704
5. Step 5: Solve for x
   x = 45,719,014,637,282,704/99,320,435
6. Step 6: Final answer
   x = 460,318,308.49