Finding the Third Proportional to 69,851,144 and 146,941,492

Step by Step Solution

1. Step 1: Write the proportion equation
   69,851,144 : 146,941,492 = 146,941,492 : x
2. Step 2: Convert to fraction form
   69,851,144/146,941,492 = 146,941,492/x
3. Step 3: Cross multiply
   69,851,144x = 146,941,492 × 146,941,492
4. Step 4: Simplify right side
   69,851,144x = 21,591,802,071,186,064
5. Step 5: Solve for x
   x = 21,591,802,071,186,064/69,851,144
6. Step 6: Final answer
   x = 309,111,645.63