Finding the Third Proportional to 326,806,807.50 and 705,258,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,806,807.50 : 705,258,931.50 = 705,258,931.50 : x
2. Step 2: Convert to fraction form
   326,806,807.50/705,258,931.50 = 705,258,931.50/x
3. Step 3: Cross multiply
   326,806,807.50x = 705,258,931.50 × 705,258,931.50
4. Step 4: Simplify right side
   326,806,807.50x = 497,390,160,460,521,664
5. Step 5: Solve for x
   x = 497,390,160,460,521,664/326,806,807.50
6. Step 6: Final answer
   x = 1,521,970,011.17