Finding the Third Proportional to 196,978,740 and 302,144,328

Step by Step Solution

1. Step 1: Write the proportion equation
   196,978,740 : 302,144,328 = 302,144,328 : x
2. Step 2: Convert to fraction form
   196,978,740/302,144,328 = 302,144,328/x
3. Step 3: Cross multiply
   196,978,740x = 302,144,328 × 302,144,328
4. Step 4: Simplify right side
   196,978,740x = 91,291,194,942,571,584
5. Step 5: Solve for x
   x = 91,291,194,942,571,584/196,978,740
6. Step 6: Final answer
   x = 463,457,096.65