Finding the Third Proportional to 43,166,912 and 89,378,128

Step by Step Solution

1. Step 1: Write the proportion equation
   43,166,912 : 89,378,128 = 89,378,128 : x
2. Step 2: Convert to fraction form
   43,166,912/89,378,128 = 89,378,128/x
3. Step 3: Cross multiply
   43,166,912x = 89,378,128 × 89,378,128
4. Step 4: Simplify right side
   43,166,912x = 7,988,449,764,784,384
5. Step 5: Solve for x
   x = 7,988,449,764,784,384/43,166,912
6. Step 6: Final answer
   x = 185,059,560.54