Finding the Third Proportional to 1,316,160 and 1,990,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316,160 : 1,990,440 = 1,990,440 : x
2. Step 2: Convert to fraction form
   1,316,160/1,990,440 = 1,990,440/x
3. Step 3: Cross multiply
   1,316,160x = 1,990,440 × 1,990,440
4. Step 4: Simplify right side
   1,316,160x = 3,961,851,393,600
5. Step 5: Solve for x
   x = 3,961,851,393,600/1,316,160
6. Step 6: Final answer
   x = 3,010,159.40