Finding the Third Proportional to 142,980,651 and 308,636,118

Step by Step Solution

1. Step 1: Write the proportion equation
   142,980,651 : 308,636,118 = 308,636,118 : x
2. Step 2: Convert to fraction form
   142,980,651/308,636,118 = 308,636,118/x
3. Step 3: Cross multiply
   142,980,651x = 308,636,118 × 308,636,118
4. Step 4: Simplify right side
   142,980,651x = 95,256,253,334,109,920
5. Step 5: Solve for x
   x = 95,256,253,334,109,920/142,980,651
6. Step 6: Final answer
   x = 666,217,790.08