Finding the Third Proportional to 69,851,142 and 146,941,488

Step by Step Solution

1. Step 1: Write the proportion equation
   69,851,142 : 146,941,488 = 146,941,488 : x
2. Step 2: Convert to fraction form
   69,851,142/146,941,488 = 146,941,488/x
3. Step 3: Cross multiply
   69,851,142x = 146,941,488 × 146,941,488
4. Step 4: Simplify right side
   69,851,142x = 21,591,800,895,654,144
5. Step 5: Solve for x
   x = 21,591,800,895,654,144/69,851,142
6. Step 6: Final answer
   x = 309,111,637.65