Finding the Third Proportional to 12,926,218.50 and 19,139,746.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,926,218.50 : 19,139,746.50 = 19,139,746.50 : x
2. Step 2: Convert to fraction form
   12,926,218.50/19,139,746.50 = 19,139,746.50/x
3. Step 3: Cross multiply
   12,926,218.50x = 19,139,746.50 × 19,139,746.50
4. Step 4: Simplify right side
   12,926,218.50x = 366,329,896,084,262.25
5. Step 5: Solve for x
   x = 366,329,896,084,262.25/12,926,218.50
6. Step 6: Final answer
   x = 28,340,066.82