Finding the Third Proportional to 68,587,978 and 147,945,068

Step by Step Solution

1. Step 1: Write the proportion equation
   68,587,978 : 147,945,068 = 147,945,068 : x
2. Step 2: Convert to fraction form
   68,587,978/147,945,068 = 147,945,068/x
3. Step 3: Cross multiply
   68,587,978x = 147,945,068 × 147,945,068
4. Step 4: Simplify right side
   68,587,978x = 21,887,743,145,524,624
5. Step 5: Solve for x
   x = 21,887,743,145,524,624/68,587,978
6. Step 6: Final answer
   x = 319,119,236.11