Finding the Third Proportional to 691,284 and 1,072,890

Step by Step Solution

1. Step 1: Write the proportion equation
   691,284 : 1,072,890 = 1,072,890 : x
2. Step 2: Convert to fraction form
   691,284/1,072,890 = 1,072,890/x
3. Step 3: Cross multiply
   691,284x = 1,072,890 × 1,072,890
4. Step 4: Simplify right side
   691,284x = 1,151,092,952,100
5. Step 5: Solve for x
   x = 1,151,092,952,100/691,284
6. Step 6: Final answer
   x = 1,665,152.02