Finding the Third Proportional to 16,519,815 and 35,431,053

Step by Step Solution

1. Step 1: Write the proportion equation
   16,519,815 : 35,431,053 = 35,431,053 : x
2. Step 2: Convert to fraction form
   16,519,815/35,431,053 = 35,431,053/x
3. Step 3: Cross multiply
   16,519,815x = 35,431,053 × 35,431,053
4. Step 4: Simplify right side
   16,519,815x = 1,255,359,516,688,809
5. Step 5: Solve for x
   x = 1,255,359,516,688,809/16,519,815
6. Step 6: Final answer
   x = 75,991,136.50