Finding the Third Proportional to 989,334 and 1,478,178

Step by Step Solution

1. Step 1: Write the proportion equation
   989,334 : 1,478,178 = 1,478,178 : x
2. Step 2: Convert to fraction form
   989,334/1,478,178 = 1,478,178/x
3. Step 3: Cross multiply
   989,334x = 1,478,178 × 1,478,178
4. Step 4: Simplify right side
   989,334x = 2,185,010,199,684
5. Step 5: Solve for x
   x = 2,185,010,199,684/989,334
6. Step 6: Final answer
   x = 2,208,566.77