Finding the Third Proportional to 168,991,030 and 356,139,632

Step by Step Solution

1. Step 1: Write the proportion equation
   168,991,030 : 356,139,632 = 356,139,632 : x
2. Step 2: Convert to fraction form
   168,991,030/356,139,632 = 356,139,632/x
3. Step 3: Cross multiply
   168,991,030x = 356,139,632 × 356,139,632
4. Step 4: Simplify right side
   168,991,030x = 126,835,437,481,095,424
5. Step 5: Solve for x
   x = 126,835,437,481,095,424/168,991,030
6. Step 6: Final answer
   x = 750,545,383.87