Finding the Third Proportional to 916,212 and 1,426,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   916,212 : 1,426,666.50 = 1,426,666.50 : x
2. Step 2: Convert to fraction form
   916,212/1,426,666.50 = 1,426,666.50/x
3. Step 3: Cross multiply
   916,212x = 1,426,666.50 × 1,426,666.50
4. Step 4: Simplify right side
   916,212x = 2,035,377,302,222.25
5. Step 5: Solve for x
   x = 2,035,377,302,222.25/916,212
6. Step 6: Final answer
   x = 2,221,513.47