Finding the Third Proportional to 607,322 and 865,140

Step by Step Solution

1. Step 1: Write the proportion equation
   607,322 : 865,140 = 865,140 : x
2. Step 2: Convert to fraction form
   607,322/865,140 = 865,140/x
3. Step 3: Cross multiply
   607,322x = 865,140 × 865,140
4. Step 4: Simplify right side
   607,322x = 748,467,219,600
5. Step 5: Solve for x
   x = 748,467,219,600/607,322
6. Step 6: Final answer
   x = 1,232,405.91