Finding the Third Proportional to 19,536,742 and 28,719,751

Step by Step Solution

1. Step 1: Write the proportion equation
   19,536,742 : 28,719,751 = 28,719,751 : x
2. Step 2: Convert to fraction form
   19,536,742/28,719,751 = 28,719,751/x
3. Step 3: Cross multiply
   19,536,742x = 28,719,751 × 28,719,751
4. Step 4: Simplify right side
   19,536,742x = 824,824,097,502,001
5. Step 5: Solve for x
   x = 824,824,097,502,001/19,536,742
6. Step 6: Final answer
   x = 42,219,122.18