Finding the Third Proportional to 64,982,644 and 142,718,008

Step by Step Solution

1. Step 1: Write the proportion equation
   64,982,644 : 142,718,008 = 142,718,008 : x
2. Step 2: Convert to fraction form
   64,982,644/142,718,008 = 142,718,008/x
3. Step 3: Cross multiply
   64,982,644x = 142,718,008 × 142,718,008
4. Step 4: Simplify right side
   64,982,644x = 20,368,429,807,488,064
5. Step 5: Solve for x
   x = 20,368,429,807,488,064/64,982,644
6. Step 6: Final answer
   x = 313,444,152.99