Finding the Third Proportional to 13,281,087 and 20,307,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,281,087 : 20,307,028.50 = 20,307,028.50 : x
2. Step 2: Convert to fraction form
   13,281,087/20,307,028.50 = 20,307,028.50/x
3. Step 3: Cross multiply
   13,281,087x = 20,307,028.50 × 20,307,028.50
4. Step 4: Simplify right side
   13,281,087x = 412,375,406,499,812.25
5. Step 5: Solve for x
   x = 412,375,406,499,812.25/13,281,087
6. Step 6: Final answer
   x = 31,049,823.44