Finding the Third Proportional to 99,320,429.39 and 213,820,039.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,320,429.39 : 213,820,039.83 = 213,820,039.83 : x
2. Step 2: Convert to fraction form
   99,320,429.39/213,820,039.83 = 213,820,039.83/x
3. Step 3: Cross multiply
   99,320,429.39x = 213,820,039.83 × 213,820,039.83
4. Step 4: Simplify right side
   99,320,429.39x = 45,719,009,432,098,824
5. Step 5: Solve for x
   x = 45,719,009,432,098,824/99,320,429.39
6. Step 6: Final answer
   x = 460,318,282.08