Finding the Third Proportional to 988,453.50 and 2,158,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   988,453.50 : 2,158,156.50 = 2,158,156.50 : x
2. Step 2: Convert to fraction form
   988,453.50/2,158,156.50 = 2,158,156.50/x
3. Step 3: Cross multiply
   988,453.50x = 2,158,156.50 × 2,158,156.50
4. Step 4: Simplify right side
   988,453.50x = 4,657,639,478,492.25
5. Step 5: Solve for x
   x = 4,657,639,478,492.25/988,453.50
6. Step 6: Final answer
   x = 4,712,047.13