Finding the Third Proportional to 749,079 and 1,638,297

Step by Step Solution

1. Step 1: Write the proportion equation
   749,079 : 1,638,297 = 1,638,297 : x
2. Step 2: Convert to fraction form
   749,079/1,638,297 = 1,638,297/x
3. Step 3: Cross multiply
   749,079x = 1,638,297 × 1,638,297
4. Step 4: Simplify right side
   749,079x = 2,684,017,060,209
5. Step 5: Solve for x
   x = 2,684,017,060,209/749,079
6. Step 6: Final answer
   x = 3,583,089.45