Finding the Third Proportional to 521,380 and 1,142,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   521,380 : 1,142,412.50 = 1,142,412.50 : x
2. Step 2: Convert to fraction form
   521,380/1,142,412.50 = 1,142,412.50/x
3. Step 3: Cross multiply
   521,380x = 1,142,412.50 × 1,142,412.50
4. Step 4: Simplify right side
   521,380x = 1,305,106,320,156.25
5. Step 5: Solve for x
   x = 1,305,106,320,156.25/521,380
6. Step 6: Final answer
   x = 2,503,176.80