Finding the Third Proportional to 72,116,343 and 170,067,591

Step by Step Solution

1. Step 1: Write the proportion equation
   72,116,343 : 170,067,591 = 170,067,591 : x
2. Step 2: Convert to fraction form
   72,116,343/170,067,591 = 170,067,591/x
3. Step 3: Cross multiply
   72,116,343x = 170,067,591 × 170,067,591
4. Step 4: Simplify right side
   72,116,343x = 28,922,985,508,543,280
5. Step 5: Solve for x
   x = 28,922,985,508,543,280/72,116,343
6. Step 6: Final answer
   x = 401,060,069.12