Finding the Third Proportional to 64,855,818 and 141,678,902.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,855,818 : 141,678,902.25 = 141,678,902.25 : x
2. Step 2: Convert to fraction form
   64,855,818/141,678,902.25 = 141,678,902.25/x
3. Step 3: Cross multiply
   64,855,818x = 141,678,902.25 × 141,678,902.25
4. Step 4: Simplify right side
   64,855,818x = 20,072,911,342,765,056
5. Step 5: Solve for x
   x = 20,072,911,342,765,056/64,855,818
6. Step 6: Final answer
   x = 309,500,550.02