Finding the Third Proportional to 1,118,870 and 1,720,776

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,870 : 1,720,776 = 1,720,776 : x
2. Step 2: Convert to fraction form
   1,118,870/1,720,776 = 1,720,776/x
3. Step 3: Cross multiply
   1,118,870x = 1,720,776 × 1,720,776
4. Step 4: Simplify right side
   1,118,870x = 2,961,070,042,176
5. Step 5: Solve for x
   x = 2,961,070,042,176/1,118,870
6. Step 6: Final answer
   x = 2,646,482.65