Finding the Third Proportional to 912,898.50 and 1,970,139

Step by Step Solution

1. Step 1: Write the proportion equation
   912,898.50 : 1,970,139 = 1,970,139 : x
2. Step 2: Convert to fraction form
   912,898.50/1,970,139 = 1,970,139/x
3. Step 3: Cross multiply
   912,898.50x = 1,970,139 × 1,970,139
4. Step 4: Simplify right side
   912,898.50x = 3,881,447,679,321
5. Step 5: Solve for x
   x = 3,881,447,679,321/912,898.50
6. Step 6: Final answer
   x = 4,251,784.49