Finding the Third Proportional to 761,424 and 1,672,380

Step by Step Solution

1. Step 1: Write the proportion equation
   761,424 : 1,672,380 = 1,672,380 : x
2. Step 2: Convert to fraction form
   761,424/1,672,380 = 1,672,380/x
3. Step 3: Cross multiply
   761,424x = 1,672,380 × 1,672,380
4. Step 4: Simplify right side
   761,424x = 2,796,854,864,400
5. Step 5: Solve for x
   x = 2,796,854,864,400/761,424
6. Step 6: Final answer
   x = 3,673,189.79