Finding the Third Proportional to 525,139 and 1,152,391

Step by Step Solution

1. Step 1: Write the proportion equation
   525,139 : 1,152,391 = 1,152,391 : x
2. Step 2: Convert to fraction form
   525,139/1,152,391 = 1,152,391/x
3. Step 3: Cross multiply
   525,139x = 1,152,391 × 1,152,391
4. Step 4: Simplify right side
   525,139x = 1,328,005,016,881
5. Step 5: Solve for x
   x = 1,328,005,016,881/525,139
6. Step 6: Final answer
   x = 2,528,863.82