Finding the Third Proportional to 590,833.50 and 916,599

Step by Step Solution

1. Step 1: Write the proportion equation
   590,833.50 : 916,599 = 916,599 : x
2. Step 2: Convert to fraction form
   590,833.50/916,599 = 916,599/x
3. Step 3: Cross multiply
   590,833.50x = 916,599 × 916,599
4. Step 4: Simplify right side
   590,833.50x = 840,153,726,801
5. Step 5: Solve for x
   x = 840,153,726,801/590,833.50
6. Step 6: Final answer
   x = 1,421,980.52