Finding the Third Proportional to 526,390 and 786,076

Step by Step Solution

1. Step 1: Write the proportion equation
   526,390 : 786,076 = 786,076 : x
2. Step 2: Convert to fraction form
   526,390/786,076 = 786,076/x
3. Step 3: Cross multiply
   526,390x = 786,076 × 786,076
4. Step 4: Simplify right side
   526,390x = 617,915,477,776
5. Step 5: Solve for x
   x = 617,915,477,776/526,390
6. Step 6: Final answer
   x = 1,173,873.89