Finding the Third Proportional to 910,543.78 and 1,966,978.69

Step by Step Solution

1. Step 1: Write the proportion equation
   910,543.78 : 1,966,978.69 = 1,966,978.69 : x
2. Step 2: Convert to fraction form
   910,543.78/1,966,978.69 = 1,966,978.69/x
3. Step 3: Cross multiply
   910,543.78x = 1,966,978.69 × 1,966,978.69
4. Step 4: Simplify right side
   910,543.78x = 3,869,005,157,079.22
5. Step 5: Solve for x
   x = 3,869,005,157,079.22/910,543.78
6. Step 6: Final answer
   x = 4,249,114.91