Finding the Third Proportional to 19,536,740 and 28,719,748

Step by Step Solution

1. Step 1: Write the proportion equation
   19,536,740 : 28,719,748 = 28,719,748 : x
2. Step 2: Convert to fraction form
   19,536,740/28,719,748 = 28,719,748/x
3. Step 3: Cross multiply
   19,536,740x = 28,719,748 × 28,719,748
4. Step 4: Simplify right side
   19,536,740x = 824,823,925,183,504
5. Step 5: Solve for x
   x = 824,823,925,183,504/19,536,740
6. Step 6: Final answer
   x = 42,219,117.68