Finding the Third Proportional to 907,443 and 1,340,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   907,443 : 1,340,428.50 = 1,340,428.50 : x
2. Step 2: Convert to fraction form
   907,443/1,340,428.50 = 1,340,428.50/x
3. Step 3: Cross multiply
   907,443x = 1,340,428.50 × 1,340,428.50
4. Step 4: Simplify right side
   907,443x = 1,796,748,563,612.25
5. Step 5: Solve for x
   x = 1,796,748,563,612.25/907,443
6. Step 6: Final answer
   x = 1,980,012.59