Finding the Third Proportional to 1,243,372 and 1,869,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,372 : 1,869,672 = 1,869,672 : x
2. Step 2: Convert to fraction form
   1,243,372/1,869,672 = 1,869,672/x
3. Step 3: Cross multiply
   1,243,372x = 1,869,672 × 1,869,672
4. Step 4: Simplify right side
   1,243,372x = 3,495,673,387,584
5. Step 5: Solve for x
   x = 3,495,673,387,584/1,243,372
6. Step 6: Final answer
   x = 2,811,446.12