Finding the Third Proportional to 920,624 and 1,969,180

Step by Step Solution

1. Step 1: Write the proportion equation
   920,624 : 1,969,180 = 1,969,180 : x
2. Step 2: Convert to fraction form
   920,624/1,969,180 = 1,969,180/x
3. Step 3: Cross multiply
   920,624x = 1,969,180 × 1,969,180
4. Step 4: Simplify right side
   920,624x = 3,877,669,872,400
5. Step 5: Solve for x
   x = 3,877,669,872,400/920,624
6. Step 6: Final answer
   x = 4,212,001.72