Finding the Third Proportional to 11,139,011.81 and 17,724,358.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139,011.81 : 17,724,358.13 = 17,724,358.13 : x
2. Step 2: Convert to fraction form
   11,139,011.81/17,724,358.13 = 17,724,358.13/x
3. Step 3: Cross multiply
   11,139,011.81x = 17,724,358.13 × 17,724,358.13
4. Step 4: Simplify right side
   11,139,011.81x = 314,152,870,943,253.50
5. Step 5: Solve for x
   x = 314,152,870,943,253.50/11,139,011.81
6. Step 6: Final answer
   x = 28,202,939.02