Finding the Third Proportional to 191,391 and 402,374.25

Step by Step Solution

1. Step 1: Write the proportion equation
   191,391 : 402,374.25 = 402,374.25 : x
2. Step 2: Convert to fraction form
   191,391/402,374.25 = 402,374.25/x
3. Step 3: Cross multiply
   191,391x = 402,374.25 × 402,374.25
4. Step 4: Simplify right side
   191,391x = 161,905,037,063.06
5. Step 5: Solve for x
   x = 161,905,037,063.06/191,391
6. Step 6: Final answer
   x = 845,938.61