Finding the Third Proportional to 35,841,990 and 78,651,272

Step by Step Solution

1. Step 1: Write the proportion equation
   35,841,990 : 78,651,272 = 78,651,272 : x
2. Step 2: Convert to fraction form
   35,841,990/78,651,272 = 78,651,272/x
3. Step 3: Cross multiply
   35,841,990x = 78,651,272 × 78,651,272
4. Step 4: Simplify right side
   35,841,990x = 6,186,022,587,217,984
5. Step 5: Solve for x
   x = 6,186,022,587,217,984/35,841,990
6. Step 6: Final answer
   x = 172,591,493.59