Finding the Third Proportional to 67,298,220 and 146,406,240

Step by Step Solution

1. Step 1: Write the proportion equation
   67,298,220 : 146,406,240 = 146,406,240 : x
2. Step 2: Convert to fraction form
   67,298,220/146,406,240 = 146,406,240/x
3. Step 3: Cross multiply
   67,298,220x = 146,406,240 × 146,406,240
4. Step 4: Simplify right side
   67,298,220x = 21,434,787,110,937,600
5. Step 5: Solve for x
   x = 21,434,787,110,937,600/67,298,220
6. Step 6: Final answer
   x = 318,504,517.82