Finding the Third Proportional to 6,514,458 and 12,865,417.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,514,458 : 12,865,417.50 = 12,865,417.50 : x
2. Step 2: Convert to fraction form
   6,514,458/12,865,417.50 = 12,865,417.50/x
3. Step 3: Cross multiply
   6,514,458x = 12,865,417.50 × 12,865,417.50
4. Step 4: Simplify right side
   6,514,458x = 165,518,967,449,306.25
5. Step 5: Solve for x
   x = 165,518,967,449,306.25/6,514,458
6. Step 6: Final answer
   x = 25,407,941.45