Finding the Third Proportional to 68,653,138 and 103,618,142

Step by Step Solution

1. Step 1: Write the proportion equation
   68,653,138 : 103,618,142 = 103,618,142 : x
2. Step 2: Convert to fraction form
   68,653,138/103,618,142 = 103,618,142/x
3. Step 3: Cross multiply
   68,653,138x = 103,618,142 × 103,618,142
4. Step 4: Simplify right side
   68,653,138x = 10,736,719,351,532,164
5. Step 5: Solve for x
   x = 10,736,719,351,532,164/68,653,138
6. Step 6: Final answer
   x = 156,390,802.58