Finding the Third Proportional to 65,646,384 and 142,851,792

Step by Step Solution

1. Step 1: Write the proportion equation
   65,646,384 : 142,851,792 = 142,851,792 : x
2. Step 2: Convert to fraction form
   65,646,384/142,851,792 = 142,851,792/x
3. Step 3: Cross multiply
   65,646,384x = 142,851,792 × 142,851,792
4. Step 4: Simplify right side
   65,646,384x = 20,406,634,477,611,264
5. Step 5: Solve for x
   x = 20,406,634,477,611,264/65,646,384
6. Step 6: Final answer
   x = 310,856,946.48