Finding the Third Proportional to 20,687,404 and 43,518,716

Step by Step Solution

1. Step 1: Write the proportion equation
   20,687,404 : 43,518,716 = 43,518,716 : x
2. Step 2: Convert to fraction form
   20,687,404/43,518,716 = 43,518,716/x
3. Step 3: Cross multiply
   20,687,404x = 43,518,716 × 43,518,716
4. Step 4: Simplify right side
   20,687,404x = 1,893,878,642,288,656
5. Step 5: Solve for x
   x = 1,893,878,642,288,656/20,687,404
6. Step 6: Final answer
   x = 91,547,428.68